Tuesday, December 27, 2011

Another Cause For Children Obesity!

Childhood obesity is a serious issue as obese children are at a much higher risk of developing many chronic diseases including diabetes, heart disease, hypertension (high blood pressure), stroke and even certain types of cancer later in their life.

Sedentary lifestyle and unhealthy diet have been crowned as the main culprits responsible for childhood obesity. However, researchers from Temple University had recently found a new cause.

In a paper published in the ‘Journal of Pediatrics’, they reported that toddlers who still drank from bottles at age of 2 were 33 percent more likely than other children to be obese at the age of 5.

Of the 6,750 children studied, 1 in 5 was still using a bottle at the age of 24 months, either at night or all the time. For those who were long-term bottle users, roughly 1 in 5 was obese at the age of 5, comparing to about 1 in 6 that has been weaned earlier.

After looking into other factors that could affect a child's risk of obesity, including mother's weight, family income and education, and if the child had ever been breastfed, the researchers found that prolonged bottle-feeding by itself could induce a 33 percent increase in children's risk of obesity.

According to researchers, the bottle might be providing a source of comfort, rather than meeting nutritional needs. Nevertheless, the extra calories could be substantial. For instance, for an average 2-ear-old girl, an 8-ounce bottle of whole milk fed at bedtime would provide 12 percent of her calorie needs for the day.

Though the findings could not conclude long-term bottle-feeding is directly responsible for the increased risk of obesity, they did suggest that weaning babies around 12 month old could help prevent weight gain.

In fact, pediatricians already advise parents to wean their children when they are about 12 to 14 months old, or even earlier. This is mainly because extended bottle-feeding, especially overnight, is believed to boost the risk of cavities and might contribute to iron deficiency.

Tuesday, December 20, 2011

It Is Food Choice That Make You Fat!

What you eat is what you get! Unhealthy eating can cause people to develop chronic diseases including Type-2 diabetes, high cholesterol, heart disease and stroke.

Many people believe eating less and exercise more can achieve good health! But in reality, this seems to be too simplistic because researchers from the Harvard School of Public Health found that slight changes in eating habits, like eating an extra serving of potato chips or fries each day, could raise a person’s weight over the years.

After examining data on diet and lifestyle of 3 large studies including more than 120,000 nurses and health professionals from around the United States over a period of 20 years, the researchers argued that overall food choice appears to have the strongest link to how much a person gains weight.

While the United Nations praising potato as a good source of Vitamin-C, several B Vitamins and Minerals, including iron, potassium, phosphorus and magnesium, the researchers reported on June 22, 2011 in the ‘New England Journal of Medicine’ that people who ate an extra serving of French fries every day gained an average of 1.5 kilos over a 4-year period. Those who consumed on an extra serving of potato chips daily gained an average of 770 grams every 4 years, and an extra serving of potatoes prepared in any non-chip form was found to contribute to an average weight gain of 590 grams over 4 years.

Similar results were seen in people who consumed extra sugary drinks (0.45 kilos) and unprocessed meat (0.43 kilos) and processed meat (0.42 kilos).

On the other hand, people ate more of certain foods like yoghurt, vegetables, fruits and whole grains, did not gain weight. Over the period of 4 year, people who ate an extra serving of vegetables each day lose 0.1 kilos. Similar results were discovered in people who ate extra serving of yoghurt (0.37 kilos), fruit (0.21 kilos) and nuts (0.26 kilos).

In conclusion, the study found that quality of food is more important than quantity to prevent long-term weight gain, and that small lifestyle changes did make the difference between staying slim and becoming overweight.

Wednesday, December 14, 2011

Be Happy To Lower Heart Disease Risk!

Are you happy with your life? If your answer is yes, then probably you will be at a lower risk of getting heart disease.

Researchers from Harvard School of Public Health in Boston found that people who were most content with their lives had 13 percent lower risk of heart disease. Their findings were published online on July 4, 2011 in the ‘European Heart Journal’.

According to them, participants' level of satisfaction with their job, family, sex life and with themselves was linked to their risk of coronary heart disease. The higher the satisfaction, the greater the risk reduction.

About 8,000 British government workers were asked about 7 specific areas of participants' everyday lives, including love relationships, leisure activities, standard of living, job, family, sex and one's self. They rated their satisfaction level in each area on a scale of 1 (very dissatisfied) to 7 (very satisfied).

The participants’ health records for coronary related death, non-fatal heart attack and angina, or chest pain were tracked over the next 6 years. It seemed that satisfaction with one’s job, family, sex and self were most paramount for heart disease prevention, after taking into account of other heart disease risk factors including hypertension (high blood pressure) and body mass index (BMI).

Health experts have long regarded depression and anxiety as risk factors for heart disease, but there has not been much evidence found that supported benefits of a positive psychological state like feeling content with one’s life.

The new findings suggested effort to encourage positive psychological states could be as relevant as to lessen negative psychological states for those who are at high risk of heart disease.

Nevertheless, being happy alone might not be enough to keep heart disease away as there are many other risk factors that can cause people to develop heart disease. The basic rules remain: a healthy diet and regular physical activities are still a must for people who wish to be heart healthy.

Monday, December 05, 2011

How Did Movies Affect Teen Smoking?

Smoking is undoubtedly a unwanted habit that should not be encouraged because it can cause smokers as well as people around them (through secondhand smoke) suffer chronic diseases including lung cancer, heart disease, stroke, COPD (chronic obstructive pulmonary) and erectile dysfunction. It can lead to birth defects, too.

Teens smoke for a number of reasons. Pressure among the peers and smoking habit of parents or relatives tend to influence the teens to follow suit. A study by the Centers for Disease Control and Prevention (CDC), however, indicated that smoking among teens is somehow related to movies with tobacco.

According to their findings that were published on July 14, 2011 in the ‘Morbidity and Mortality Weekly Report’, number of movies in the United States in which an actor smoked fell sharply between 2005 and 2010.

55 percent of movies that had huge box office grossing in the United States in 2010 did not have smoking scenes, compared with a third of films that scored huge box office success in 2005.

During the same 6-year period, the number of tobacco incidents in top-grossing movies fell by 56 percent, though there were still some 2,000 scenes where an actor used tobacco either openly, on screen, or implicitly, off-screen. In fact, the percentages of 2010 top-grossing movies with no tobacco incidents were the highest observed in 2 decades.

In 2010, a study released by CDC found that the percentage of middle school students in the United States who smoked fell from 11 percent to 5 percent between 2000 and 2009 and those who experimented with smoking fell from nearly 30 percent to 15 percent.

Meanwhile, use of other tobacco products like cigars, pipes and chewing tobacco was also down among middle school boys aged between 11 and 14. The smoking among high school students was also down though less sharply.

17 percent of high school students smoked cigarettes in 2009, comparing to 28 percent in 2000, while 3 in 10 high school students tried smoking 2 years ago, comparing to nearly 4 in 10 in 2000.

The drop in onscreen smoking might have contributed to the decline in smoking among middle school and high school students.

Saturday, November 19, 2011

Why Should Junk Food Advertisements Be Banned?

Children obesity has been a headache for not only developed but also many developing nations. Overweight or obese children will have a higher risk of developing chronic diseases like hypertension (high blood pressure), heart disease, Type-2 diabetes and stroke later in their life.

Inadequate physical activity and unhealthy diet are the 2 main reasons identified by health experts that cause the childhood obesity. Children tend to watch long hours of television and eat a lot of junk foods.

In a paper published in June 2011 in the journal ‘Pediatrics’, researchers from the University of Liverpool in the United Kingdom reported that television advertisements for junk food really make children hunger for those treats, especially if they watch a lot of television.

A DVD featuring commercials for fast food and junk food seemed to stimulate the appetites for sweet and high fat fare for children aged between 6 and 13 years old.

The children involved in the study had a greater desire for sweet and fatty foods after viewing the junk-food advertisements compared to days when they watched advertisements for toys. This was especially true for those children who watched a lot of television (defined in the study as over 21 hours a week).

While children wanted more high carbohydrate, high fat foods after watching junk food advertisements, the effects of the advertisements were modest. The researchers argued that in real life, a lot of other factors like parents’ willingness to buy those junk foods could affect the choice of food for the children.

Exposure to television food commercials would enhance high television viewers' preferences for branded foods and increased reported preferences for all food items (branded and unbranded) relative to the low television viewers, according to the researchers.

Children nowadays watch television not only at home but also on their computers as well as mobile phones, which can add up to a lot of hours. There is no doubt that parents should limit the television time of their children, but of course with some help. This is because parents alone cannot counter the food companies who spend huge amount (about $2 billion) every year on fun and irresistible advertisements aiming at kids.

Perhaps it is time for legislation and any relevant authorities to step in!

Saturday, November 12, 2011

How Is Waistline Linked To Stroke?

Cerebrovascular disease is a group of brain dysfunctions related to disease of the blood vessels supplying the brain, with hypertension (high blood pressure) being the most important cause. Results of cerebrovascular disease can include a stroke, or occasionally a hemorrhagic stroke.

In Taiwan, cerebrovascular disease ranked third in the 10 leading causes of death, showing stroke could be the immense threat for the health of Taiwanese.

Scientists have found the link between waistline and heart disease. But how about stroke, does it also has some connection with the waistline?

According to a study conducted by the Millennium Health Foundation (MHF) in Taiwan, a one-centimeter increase in waistline raises the likelihood of getting a minor stroke by 2 percent.

Minor stroke, also known as transient ischemic attack (TIA), is a condition showing stroke-like symptoms that generally last for just a few minutes and do not cause any lasting impairment. TIA is, however, a warning sign of possible serious and disabling strokes. Research showed that about one in 20 people who have a TIA will have a major stroke within a few days and one in 10 will have one within 3 months.

From the data collected and released in 2010 by MHF, among 40 percent of the people whose waistlines exceeded the standard range, 70 percent of men and 60 percent of women, had abnormal blood pressure that could possibly lead to stroke. Such result showed the existence of a strong positive correlation between waistline and possibility of getting a minor stroke.

When people enter middle age, they will have their waistline increased by around 10 cm on average, the increase in probability of suffering a minor stroke will therefore amount to 20 percent. Once a person suffers a minor stroke, the chances that he or she would get a severe stroke afterwards is 10 times that of a person without a prior minor stroke.

In order to prevent stroke, MHF suggests people should limit their waistlines to a maximum of 90 cm for males and 80 cm for females.

Saturday, October 29, 2011

Another Way To Control Weight

Overweight and obesity are big headache for health experts around the world as these 2 conditions will likely raise a person’s risk of getting diabetes, high cholesterol, hypertension (high blood pressure), and eventually lead to heart disease or stroke. The medical cost involved can be a heavy burden for the governments.

In order to control body weight, one should watch the amount of food he or she eats. Numerous studies have looked at how the portion size can affect on the amount people eat. A new study, conducted by researchers from University of Utah, Salt Lake City, examined at how the bite size will influence the quantities ingested.

In their paper published in July 2011 in the ‘Journal of Consumer Research’, they argued that bigger bites lead to eating less, but only in restaurant settings.

The study was carried out in a popular Italian restaurant in the South-Western United States. 2 sizes of forks were used to manipulate bite sizes: a larger fork that held 20 percent more food than the fork usually used in the restaurant, and a smaller fork that held 20 percent less than the usual one. It was found that diners who used large forks ate less than those who used small forks.

Tables were furnished with either large fork or small fork over 2 lunches and 2 dinners in the restaurant. Servers, including one of the study's researchers, took customers' orders, and weighed the full plate of food that they had ordered before serving it to them.

Each plate was attached with a small sticky note written with details including weight and other information. At the end of the meal, every plate was brought back to the kitchen and weighed again. The results showed that diners who used the bigger fork ate less food than those who used the smaller fork.

Such theory, however, only worked in a restaurant setting. In another study conducted in the laboratory using also Italian food, researchers found that people who used big forks actually eat more. Hence, the study concluded that there are different motivations when people eat in a restaurant or a laboratory.

If you wish to control the amount you eat, perhaps you should ask for or simply bring along a big fork the next time you visit an Italian restaurant!

Friday, October 21, 2011

Can Olive Oil Prevent Stroke?

Olive oil is known to benefit heart disease patients.

Some clinical trials have found that Mediterranean diet, with olive oil as key ingredient, helps control some risk factors for heart disease, including high blood pressure, abdominal obesity and elevated levels of LDL (bad) cholesterol. Besides olive oil, Mediterranean diet also includes plenty of fruits and vegetables, whole grains, fish and moderate amounts of red wine. High olive oil intake is also linked to a lower risk of heart attack, and a longer lifespan among heart attack patients.

Recently, researchers from the National Institute of Health and Medical Research in Bordeaux, France even suggested that older people who ate olive oil have a lower risk of stroke than those who did not. Their paper was published on June 15, 2011 in ‘Neurology’, the medical journal of the American Academy of Neurology.

They followed 7,625 French people who aged 65 and above from 3 cities (Bordeaux, Dijon and Montpellier) for a period of 5 years. The participants were divided into groups according to their use of olive oil, ranging from people who did not use it at all to those who used it in dressing, cooking and on bread (classified as ‘intensive’).

During the period of study, there were 148 strokes. Those intensive users suffered stroke at a rate of 0.3 percent per year, comparing with just over 0.5 percent among non-users and 0.4 percent among moderate users.

After adjusting for factors like body weight, physical activity and overall diet, the risk of stroke for ‘intensive’ olive oil users were found to have 41 percent lower than that of those who never ate olive oil.

Based on the findings, it seemed that a new set of dietary recommendation should be issued to prevent stroke in people who are 65 and above. Olive oil can be an inexpensive and easy way to help older people prevent from getting stroke.

People should choose olive oil and other unsaturated fats over saturated fats that are found largely in meats and dairy and trans fats that were found in some processed foods such as crackers, cookies and chips.