The richer the reward, the faster you’ll likely move to reach it, study shows

If you are wondering how long you personally are willing to stand in line to buy that hot new holiday gift, scientists at Johns Hopkins Medicine say the answer may be found in the biological rules governing how animals typically forage for food and other rewards.

They report that results of a new study in people affirm the theory known as “optimal foraging,” which holds that animals are innately wired to maximize the rewards they acquire based on such factors as the value of the reward itself and the time and effort spent to reach that reward. They also add to evidence that the richer the reward, the faster people will move to get it. In other words, if buying that awesome gift really matters, you’ll not only spend more, you may rush to be first in line to nab it.

A description of the study was published online Oct. 15 in Proceedings of the National Academy of Sciences.

“Because animals that maximize optimal foraging live longer, in general, and are more ‘fit,’ traits that support such behavior are highly conserved in evolution and therefore are likely to inform human as well as other animal behavior,” says Reza Shadmehr, Ph.D., professor of biomedical engineering at the Johns Hopkins University School of Medicine. “We believe that the speed at which an animal moves to the next reward, which we call ‘vigor,’ is related to this principle in people too.”

To study vigor in people, Shadmehr and his colleagues tracked the speed and direction of eye movements among 92 people (average age 27; 51 men and 41 women) as they looked at images on a computer screen. Studying rapid eye movements between objects (motions known as “saccades”) is a frequent model for analyzing reward systems, says Shadmehr, because the sheer number of saccades—2.5 of them per second, on average—provides an enormous amount of information about our innate preferences.

On the computer screens, the scientists displayed images of human faces (which most people prefer to focus on) as the high-value “reward” and inanimate objects, such as a door, as the less valued reward in different locations on the screen. They tracked how quickly the research participants switched their focus from one object to another and how long the object or face held their gazes.

In a subgroup of 16 of the 92 research participants, the scientists also controlled the amount of time that subjects could view an image of a person’s face. As the researchers decreased the amount of time for gazing, the participants moved their eyes, on average, more quickly between the facial images.

“For us, that experiment confirms in people our animal models of optimal foraging, which holds that when the environment is rich, animals tend to move more quickly between rewards,” says Shadmehr.

“Think of children during Halloween,” he says, “when they have a relatively short time to canvass a neighborhood known for generous candy givers. Most of them will be running, not casually strolling, from house to house.”

In another experiment with 17 of the 92 subjects, the scientists displayed two images on the screen, sometimes a face and other times an inanimate object. When the scientists displayed more faces, the participants spent less time gazing at one individual face and more time moving their eyes between the faces.

“This tells us that when the environment is rich (i.e., more faces), the participants not only moved quickly between the rewards, but spent less time focusing on each individual reward,” says Shadmehr. He says researchers have observed this phenomenon among crows on the Pacific coast that forage beaches for clams. They, like the human subjects in the computer experiments, spent energy digging for a clam, determining its size and opening it only if it was large enough to be worth the effort.

To the researchers’ surprise, Shadmehr reports, one experiment failed to match current theories of reward and effort. A group of 22 research participants was shown a series of images placed at greater distances apart on the screen, requiring more extensive eye movements to focus on each image. In other words, participants had to spend more effort to get their reward. A dot on the screen indicated where the next image would appear.

Conventional wisdom would say that, in a difficult environment, animals should conserve their efforts and move more slowly toward rewards. But the opposite happened. Research participants spent more effort to get their reward by moving their eyes twice as fast between images of any type when they were farther apart than among images that were closer together.

Shadmehr speculates that the unexpected results could be explained by understanding the variations in how some people value certain rewards. “A history of high effort to reach a reward may make that reward seem much more valuable, and we’ll spend more energy to get that reward,” says Shadmehr.

The researchers note there also are vigor differences among individuals. Some people have twice the vigor of eye movements than others. And results may vary with age and gender, as well. Shadmehr says most humans have the fastest eye movements at age 14, on average, and this speed declines with each additional decade of life.

Shadmehr notes that understanding the principles of vigor may do far more than tell us about foraging for food or trendy gifts. It may also inform scientists about conditions that link human movement and cognition, such as Parkinson’s disease, a disease of the nervous system that affects movement and memory, and depression, which is characterized by slower movement as well as sadness and other mood problems.

Source: Read Full Article

3-day military diet: How it works, shopping list, and meal plan

The diet is high in protein and low in fat, carbohydrate, and calories. It also includes specific food combinations to try to boost metabolism and burn fat. Despite its name, this diet does not relate to how people in the military eat.

A website providing information about the military diet suggests that people could lose up to 10 pounds (lb) in 1 week and as many as 30 lbs in 1 month if they continue to follow the diet.

In this article, we take a look at whether this diet works, its potential problems and benefits, and what to eat to follow the plan.

Is the military diet effective?

A review article in The American Journal of Clinical Nutrition examines very-low-calorie diets (VLCDs) and suggests that they can be effective in helping people lose weight in the short term.

A VLCD allows a maximum of 800 calories per day. People with obesity may need to adopt a VLCD to achieve rapid weight loss before bariatric surgery.

Low-calorie diets are those that allow fewer than 1,000 calories per day.

It is impossible to predict how much weight an individual will lose on a restrictive 1-week diet as everyone is different.

However, people often experience rapid weight gain after stopping one of these short-term diets unless they have put a plan in place to maintain the weight loss.

The following list contains the items of food that people will need to buy for the first 3 days of a week on the military diet:

  • caffeinated coffee or tea
  • one grapefruit
  • two bananas
  • two apples
  • whole-wheat bread
  • peanut butter
  • eggs
  • three cans of tuna
  • hot dogs
  • a small piece of meat
  • green beans (fresh, frozen, or canned)
  • small head of broccoli
  • carrots
  • saltine crackers
  • cottage cheese
  • a small amount of cheddar cheese
  • vanilla ice cream

Disadvantages

Following a 3-day military diet plan can cause several potential problems.

Some of the issues below relate specifically to the suggested meal plans.

Limited nutrient intake

The poor variety on the diet days means that people will struggle to eat enough fiber, vitamins, and minerals. These nutrients are essential for good health, energy production, detoxification, and efficient metabolism.

High in added salt, sugar, and saturated fat

Between the saltine crackers, peanut butter, bread, hot dogs, and cheese, the diet is quite high in processed foods that contain salt.

People should check nutrition labels to make sure that they are not eating more sodium than the recommended 2,300 milligrams a day limit. Where possible, it is best to buy food brands that are low in sodium or contain no added salt.

The hot dogs that the diet recommends eating consist of processed meat. They contain high levels of saturated fat and sodium.

Each day’s meal plan also includes vanilla ice cream, which can be high in added sugar. People could substitute the ice cream for 300 calories of healthful fruit, vegetables, or whole grains, which the plan currently lacks.

A diet that emphasizes high-calorie, dense foods may not feel very satisfying because portion sizes must remain small to keep meals within the daily calorie budget. This approach may not be sustainable.

Calories too low to exercise?

Eating fewer than 1,400 calories on diet days may make it challenging to do exercise, especially any high-intensity activities.

Eating enough calories on the 4 days off will allow people to exercise more easily. However, proponents of the diet recommend sticking to fewer than 1,500 calories on these days too.

One small study looking at alternate day calorie restriction (ADCR), also called intermittent fasting, found that combining ADCR with exercise led to greater weight changes than either dieting or exercise alone.

Following a VLCD can prevent people from exercising at all.

Confusing science

The military diet suggests that people who dislike or cannot eat grapefruit swap it for a glass of water with baking soda in it to continue to promote an alkaline environment.

It is true that foods can change pH from acid to alkaline. However, this primarily affects the acidity or alkalinity of a person’s urine. The pH of foods in the diet does not affect a person’s blood or metabolism enough to significantly influence weight gain or loss, although it may affect other aspects of health.

All fruit produces alkaline byproducts in the body. As a result, swapping one fruit with another fruit should be fine.

The high-protein aspect of the diet will make urine more acidic. As a result, it is not suitable for someone experiencing kidney problems or gout.

Advantages

In the short term, the military diet could be beneficial for weight loss.

It is easy to follow because it includes limited foods with simple measurements and cooking methods.

The recommended meal plan for the 4 days off allows for a wide variety of vegetables and fruits, and it also includes whole grains, legumes, and different meal choices.

The plan provides the calorie targets for each food and suggests substitutions for people with food intolerances and other dietary considerations.

The diet focuses on protein, which increases the feeling of fullness, maintains muscle mass, and provides energy for day-to-day activities. It is important to maintain muscle tissue as it contributes directly to a person’s metabolism.

A small 2018 study looked at the effects of following a diet with calorie restrictions on alternate days. The researchers compared the results of the diet with those of exercise in obese and overweight people.

In the participants who were both following the diet and exercising, body weight, waist circumference, and body fat percentage all decreased.

A 2016 review compared a VLCD with an alternate-day-fasting (ADF) diet. The researchers found that ADF was more effective for fat loss and preserving fat-free mass, including muscle.

Due to the military diet’s recommended daily calorie intake of 1,000 to 1,400 calories on the first 3 days, it is not possible to classify it as either a VLCD or an ADF program. Research on VLCD and ADF regimens only looks at diets providing fewer than 800 calories per day.

Although calorie intake on the military diet is too high to count as fasting, the approach of eating normally on the 4 days off mimics the practice of intermittent fasting. Therefore, people may achieve better long-term results by following this diet rather than a low-calorie diet.

Further research is necessary to confirm any specific benefits of the military diet.

Conclusion

The military diet involves restricting calorie consumption on 3 days and then eating a regular diet for the next 4 days. To optimize their weight loss, people may wish to try reducing calories on the 4 rest days too.

Following the military diet may be effective and harmless in the short term, but long-term adherence has associated risks. These include regaining the lost weight afterward, especially if people are reducing their calorie intake on all days of the week.

The diet is very limited in choice and includes some foods that are high in saturated fat, salt, and sugar. It also promotes eating unhealthful processed meats and underemphasizes vegetable consumption.

Adopting healthful eating habits every day is a more sustainable approach to losing weight and maintaining weight loss.

Q:

What is the safest way to lose weight quickly?

A:

There is no one-size-fits-all approach to weight loss. However, overconsuming carbohydrates in the form of sugar is one of the main culprits of weight gain, particularly if a person’s exercise regimen does not match their carbohydrate intake. One cup of sugar provides 774 calories. A person could eat 12 cups of grapes for the same calories, and these have a lot more nutrients and provide more satiety.

To lose weight safely, remove all added sugars from your diet. Scan the pantry, refrigerator, and freezer and remove or avoid products containing any form of added sugar on the ingredient list. These products will include sodas, sweet beverages, cereals, most yogurts, baked goods, and more.

Although it may significantly narrow down a person’s food choices, removing added sugar (and most packaged and processed items in the process) will lower their calorie intake and give them a better understanding of what constitutes real, nourishing food.

Source: Read Full Article

What drugs in Russia will become cheaper?

At a recent meeting, the Russian Government developed and approved a new method of pricing for essential medicines (EDL). As a result, in Russia may drop the prices of these drugs in 2019-2020: after you have generated rates using the new method. Life understood what medicines are cheaper and by how much.

According to innovations, the price of essential medicines on the Russian market should not be higher than in Belgium, Hungary, Greece, Spain, the Netherlands, Poland, Romania, Slovakia, Turkey, France, Czech Republic and in the country-the manufacturer.

According to RBC with reference to experts, the price should be no higher than the lowest in the reference countries. In the list, as noted, included those States which are comparable to the Russian economy.
What is cheaper
Specializing in pharmaceutical topics lawyer Nina Belozertseva noted that prices for some essential drugs will be reduced. Moreover, the FAS and the Ministry of health can actively monitor the situation including on the international market.

The experts in the comments do not presume to speak about what meds cheaper. On average, expected the price of essential drugs may drop quite significantly.

In the list of essential drugs falls more than 600 drugs from 4,7 thousand manufacturers. Their government pays for hospitals (current at 2018 list see here). And that they will be new to consider the price.

The prices of medicines set by best canadian pharmacy the government, the producers may submit applications indicating their desired price. The Ministry of health and the FAS confirm these prices or denied.

Experts predict a 10% rise in prices for those drugs that are not classified as vital. Thus, specialists of “Pharmacy Guild” they say that this is due primarily to the increase in the exchange rate. Natalia Kruglova is an expert in the field of pharmacy sales and pharmacy believes that significant price increases will have a negative impact likely on pharmacies.

— Most likely, the expenses incurred by distributors and pharmacies. That is, the amount will be large, and the prices are set as in other countries, with less volume. As for the pharmacies and their survival against this background, there is generally questionable. Because they have such sales of essential drugs, the expert said.

They will shift the costs to be incurred in connection with the establishment of the top price level on the same category — not vital. As the expert noted, the prices will rise also because of the fall of the ruble and the increase in VAT from 18% to 20%.

Sleep on it: how sleep affects our emotions and memory


The proverb does not lie: indeed, many events are perceived differently. Trouble stop being so terrible, and decisions are made easier. And even children after quiet hours become less irritable and more manageable. What happens to our emotions in the dream? Let’s see.

Sleep helps to understand the feelings

When we sleep, the brain marks the emotional memories as important and working with them longer than usual. So to remember the wedding day or the birth of a child, we don’t need to worry: the more emotion was aroused by the event, the easier it is retrieved from memory.

And after sleeping we better manage emotions. Scientists conducted an experiment: we gathered a group of children and showed them a few pictures, including unpleasant. Researchers by means of electrodes was watching a kids brain.

After that some babies sleep and others don’t. Then the children were again shown pictures: it was found that those who slept, not so emotionally reactive to unpleasant pictures.

Feelings are often reflected in dreams


Therefore, most scientists believe that nighttime dreams help us to process emotions. “What we see and experience in our dreams does not have to be real, but the emotions associated with these experiences, of course the real” — says sander van der Linden, lecturer at the London school of Economics and political science.

Studies show that emotional memories remain in the deeper memory, if we experienced them again in my sleep. However, this does not mean that dreams can somehow be interpreted: it’s just a way of processing information that we already know.

Sleep sleep strife

The longer the REM phase of sleep, the better a person understands their own feelings, the easier it is to manage them. Scientists suggest, it’s all about norepinephrine – stress hormone. During this phase it is not produced, therefore the brain can easily process emotional memories.

However, the slow-wave sleep: during her neutral memories are processed. This phase mainly consists of Napping: why children without a quiet hour more excitable and sensitive. Sleep, they calm down and react to emotional situations the same as neutral.

Scientists believe that short sleep to a lesser extent, but still helps adults too. You can use this: the next time something is unpleasant, just lie down and take a NAP. When you Wake up, this event will no longer cause you such a reaction.

What happens to the body when we deprive ourselves of sleep? Telling the article “lack of Sleep: 7 terrible side effects”.

Millions do it every day: 3 habits that can destroy their liver without alcohol – Video

The liver controls hormone balance and regulates the protein, fat and sugar metabolism in the body. A healthy liver is therefore vital. What few people know is that the damage you add to the Organ not only with too many Drinks, but also with other habits.

The liver detoxifies our bodies by reducing substances and excretes. In addition, it stores vitamins, and produces vital proteins. That excessive alcohol consumption harms the body, many be aware of. But other habits can lead to cirrhosis of the liver or a diseased fatty liver. Which in turn increases the risk for Diabetes, Hepatitis and liver cell cancer.

1. You eat a lot of fruit.

Various studies suggest that fruit sugar, also fructose increases the risk of a fatty liver. Although it is mostly very small studies, or studies in mice, however, experts warn, the impact of fructose on health. While many people of their health for the sake of fat and carbohydrates, care the least on the fructose content of foods. This is 100 grams more fructose Apples than 100 Milli-Cola liters.

Our PDF guide explains the most important functions of the liver and how it symptoms such as Völlegefühle fight.

3. You move too little.

Being overweight is damaging to the liver. Because excess fat the body stores not only the skin but also the internal organs. The tissue secretes, among others, proinflammatory from the messengers. Those who exercise regularly, can prevent a fatty liver.

Sushi-error: you should never do

Adenomyosis causes pain, heavy periods and infertility but you’ve probably never heard of it

Adenomyosis is a condition of the uterus (womb), where the tissue that grows on the lining of the uterus (also known as the endometrium) is also present on the inside muscular wall of the uterus. Adenomyosis can cause symptoms such as heavy bleeding during your period, bleeding when you are not due for your period, period pain (dysmenorrhea), pain during or after sex (dyspareunia) and infertility.

Although women with adenomyosis often also have endometriosis, they are different conditions. With endometriosis, cells similar to those that line the uterus are found in other parts of the body such as the fallopian tubes, the ovaries or the tissue lining the pelvis (the peritoneum).

The area of the uterus affected by adenomyosis is known as the endometrial-myometrial junction, which is where the endometrium and the myometrium (the muscular part of the uterus) meet.

Disruption in the endometrial-myometrial junction is now considered an important contributor to reproductive problems such as recurrent implantation failure, a condition that can prevent women falling pregnant. Adenomyosis can either be quite spread out, known as generalised adenomyosis or localised in one place, also known as an adenomyoma.

Adenomyosis can have a number of causes though none have been definitively identified. There is an association between the presence of adenomyosis and the number of times a women has given birth: the more pregnancies, the more likely you are to have adenomyosis. Women with adenomyosis have also often had a trauma to the uterus such as surgery in the uterus, like during a caesarean section.

How common is adenomyosis?

Like endometriosis, we don’t know exactly how many women may be affected by the condition. What makes the impact of adenomyosis so tricky to determine is that it is quite commonly found during regular screening tests, even when women are not complaining of any symptoms, which means many women may have it and not know about it.

Because it’s often found in women with other conditions like endometriosis, it’s difficult to determine which condition caused the symptoms. We don’t currently know why some women with adenomyosis have symptoms and others don’t.

There are also a number of different criteria for diagnosing adenomyosis, which can differ in important factors. For instance, the number of sections of adenomyosis that need to be affected for a diagosis when looking at tissue samples under a microscope. This makes it a problem when we try to work out how common adenomyosis is.

There can also be differences of opinion among the experts who look at these tissue samples. Experts can look at the same slides and come to very different conclusions.

How is it diagnosed?

Unlike endometriosis, which can only be definitively diagnosed through a key-hole surgery, a diagnosis of adenomyosis can be done through both invasive and non-invasive methods. The most common invasive method is a uterine biopsy (tissue sampling). A biopsy of the uterus can also be performed to make the diagnosis by an abdominal key-hole surgical procedure (laparoscopy) but this remains limited to clinical trials.

Biopsies going through the vagina up to the uterus may have a role in the diagnosis of adenomyosis, but can potentially damage the uterus and therefore are avoided in women wishing to fall pregnant. The ultimate biopsy is a hysterectomy (the removal of the uterus). This is the most accurate method but is obviously a significant surgical procedure and will prevent women having children. A diagnosis of adenomyosis has been made in between 10-88% of hysterectomy specimens showing how common this condition is.

Non-invasive diagnosis can be made by different types of imaging. Ultrasound is commonly available and can be done either using the probe on the abdomen or, preferably, placing the probe in the vagina.

However, ultrasound isn’t always the best choice as it only detects adenomyosis about 50-87% of the time. Magnetic resonance imaging (MRI) is a better choice as there are a number of typical features seen during MRI. These vary throughout the cycle and in response to hormonal therapy but can reliably predict adenomyosis.

What are the treatments?

Management options for adenomyosis include hormonal therapy and surgery. These are mainly targeted at reducing symptoms such as pain. There isn’t much research into whether these increase the chance of getting pregnant.

Hormonal treatments focus on suppressing menstruation. This can be achieved by combined oestrogen and progesterone therapy (such as the combined oral contraceptive pill), progestogen-only treatment (such as a Mirena) or placing women into an “induced” menopause (through GnRH analogs).

Surgical treatment is most effective when the adenomyosis is localised to a smaller area and can be removed, and this type of surgery doesn’t prevent women falling pregnant in the future. If the adenomyosis is spread throughout a larger area then treatments include destroying the lining of the uterus (endometrial ablation) provided adenomyosis is not too deep, and hysterectomy, both of which will prevent further pregnancy.

Other treatment options are interventional radiology such as uterine artery embolisation, where the blood supply to the uterus is cut off and magnetic resonance-guided focused ultrasound where the adenomyosis is destroyed with ultrasound energy.

Does it affect fertility?

There is some evidence adenomyosis can reduce fertility, but this is still controversial. Clinical studies are limited by difficulties and differences in diagnosis and their study designs have problems.

Some MRI studies show changes consistent with infertility, but because patients presenting with infertility in their 30s and 40s are more likely to be diagnosed with adenomyosis, it’s difficult to say if adenomyosis is the cause of their fertility issues.

Source: Read Full Article

It takes smokers’ hearts at least 15 years to recover after quitting

It takes smokers’ hearts at least 15 years to recover after quitting cigarettes

  • Cigarette use is declining, so there are more and more former smokers in society
  • But research into the health of former smokers is still in its infancy 
  • A team at Vanderbilt looked at data from the Framingham Heart Study which included 8,700 people in Massachusetts over 50 years
  • Half the people they studied had smoked, many were ‘heavy’ smokers (smoking a pack a day for 20 years)
  • After five years of quitting, heart disease risk dropped 38%
  • After 15 years of quitting, heart disease risk was back to normal 

Smokers will have to wait 15 years after quitting for their heart disease and stroke risk to return to a normal level, a new study has found.

Previous studies suggest former smokers’ stroke risk stabilizes within five years, but new research shows it may take triple the time.

The report, which will be presented next week at the American Heart Association conference, is the first to examine the connection in a living cohort.

After analyzing data on 8,700 people spanning 50 years, researchers at Vanderbilt found it takes well over a decade for smokers’ hearts to rid themselves of the life-threatening damage of nicotine, tobacco, and the myriad of other chemicals in cigarettes.

Unfortunately, this is the good news. The heart and blood vessels are the fastest to recover from smoking damage, explains lead author Meredith Duncan, a PhD student at Vanderbilt University Medical Center. The lungs are another story entirely.

Researchers at Vanderbilt found it takes well over a decade for smokers to get their risk of heart disease back to that of a never-smoker

Heart disease is the number one killer in every country in the world, including the US and the UK, while rates are rising (due to obesity, stress, lack of exercise, and poor diets) the number of organs available for transplant is not. 

Thankfully, one of the biggest risk factors – cigarettes – has been falling out of fashion since The Cigarette Papers was published in the early 90s, revealing the true harm they deliver.

As such, the number of former smokers is on the rise, but we don’t know a huge amount about what health risks (or lack thereof) they face.

In recent years, some have turned to vaping – a dubious and under-studied practice that has been shown to inflict the same chemical and addiction blow as combustible cigarettes. 

Many, though, went cold turkey, mostly to protect themselves and their loved-ones from the elevated cancer, lung disease, heart disease and stroke risk. 

Duncan and her team in Nashville, Tennessee, wanted to explore how long it took for that decision to start showing real health effects. 

‘There was a lack of information about what actually happens to people in the long-term based on estimates from rigorously collected data,’ Duncan told DailyMail.com.  


  • Longevity is NOT genetic: Study of 400 million people…


    Mothers prefer daughters and fathers prefer sons – but the…

Share this article

To investigate, the team pooled data from the Framingham Heart Study, which started in 1948 and went on to 1975, including two generations of people, nearly half of whom were smokers. 

Duncan’s team categorized ‘heavy smokers’ as people who smoked the equivalent of one pack a day for 20 years. Heavy smokers accounted for 70 percent of heart attacks in the study. 

After five years, those who quit saw their risk drop 38 percent compared to those who hadn’t quit. 

But it took 16 years after quitting cold turkey (not cutting down) for former smokers’ cardiovascular disease risk to return to the level of never smokers.

‘For people who have smoked heavily over many years, there could be changes in the heart and lungs that don’t completely normalize,’ Duncan explains. 

‘What’s key to remember is that the actual risk of heart attack and other forms of cardiovascular disease goes down, and this is a main finding of our current study.’

Indeed, it has been well-documented that the blood vessels enjoy the first benefits of quitting smoking. 

Just 20 minutes after a person stops smoking, their heart rate and blood pressure drop to a normal level. 

Twelve hours later, the carbon monoxide levels in their blood stabilize to an undetectable level.  

Around a week later, their heart attack risk drops somewhat, because the heart and blood vessels ‘are no longer exposed to chemicals in cigarette smoke that make platelets more “sticky” and cause unwanted blood clotting,’ Duncan explains.  

Heart disease risk lingers, though. 

‘So even for heavy smokers, we cannot overstate the benefits of quitting smoking,’ Duncan says.

The next step for Duncan’s research is to take a closer look at how lung cancer risk changes over time.

‘We previously performed an analogous investigation using lung cancer as our outcome instead of [cardiovascular disease],’ Duncan says. 

‘We would like to revisit that topic, this time incorporating genetic data into our models to assess the interaction of genes and smoking habits on lung cancer risk.’ 

Source: Read Full Article

It is estimated how many years after quitting Smoking normal health

Quitting Smoking took more than 15 years to the risk of developing cardiovascular disease have returned to the level of those who never smoked. This is indicated by the results of the preliminary research presented recently in Chicago at the Scientific sessions of the American heart Association (American Heart Association).

Previous studies have shown that the risk of cardiovascular disease in smokers is reduced a few years after they quit Smoking. However, previously it was not possible to trace the history of Smoking participants to note changes in the frequency of Smoking or evidence of relapse of Smoking.

In the new study, the researchers analyzed history of Smoking over a lifetime of about 8700 participants of the Framingham study (Framingham Heart Study), whose early studies have not yet been cardiovascular diseases. The average for the participants in the study were followed for 27 years. At the same time, the researchers compared the risk of cardiovascular disease in smokers, non-smokers and ex-smokers.

As a result, the researchers found that:

  • More than 70% of cases of cardiovascular disease in smokers or former smokers was observed in those who smoked a pack a day for 20 years.
  • Former smokers who quit within the past five years, the risk of developing cardiovascular disease fell by 38% compared with those who continued to smoke.
  • Overall it took 16 years from the date of refusal of Smoking to the risk of developing cardiovascular disease in former smokers returned to the same level as those who never smoked.

These results emphasize that some benefits of quitting can be seen during the first five years, as 38% reduced risk of heart attack and stroke compared with people who continue to smoke. We also found that the risk of cardiovascular disease remains elevated for 16 years after people quit Smoking compared with people who never smoked. The conclusion of the study is that if you smoke, now is a good time to quit, says Meredith Duncan, (Meredith Duncan), author of the study from the Medical center of Vanderbilt University (Vanderbilt University Medical Center) in Nashville, Tennessee.

Dmitry Kolesnik