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Strict diet may affect your brain's health

Too strict dieting until the body feels hunger should not be done. Because scientists warn that an excessive diet can make brain cells eat themselves.

Scientists say people who are too struggling to lose weight to make themselves malnourished can cause brain cells to eat themselves because of a strong hunger impulse.

This is because the body responds by producing fatty acids that will trigger hunger signals in the brain and increase the drive for a person to eat.

In the study note that the brain is just like other body parts, brain cells will start to eat itself as the last source of energy to counteract the hunger that arises. The research was conducted by researchers from Albert Einstein College of Medicine at Yeshiva University, New York.

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The study was conducted using rat animal experiments. The process of brain cells that eat themselves is called autophagy, which is done to prevent the increase in hunger experienced by dieting too tight.

"It is important that every cell can submit its components to maintain the existing process," said lead researcher Dr. Rajat Singh, as quoted by the Telegraph, Wednesday (03/08/2011).

In addition, women who do too strict diet can also affect fertility that will make it difficult to have children, due to disruption of menstrual cycles and the release of eggs.

Another impact is not getting enough nutrients for the body to function properly which can lead to problems such as the immune system and decreased cognitive function, anxiety, depression and susceptibility to disease.


What you can do to get rid of cholesterol

People who have high levels of bad cholesterol (LDL) are usually advised to reduce animal foods or fats. But if you want more quickly down, it must be followed by diligent eating cholesterol-lowering food.

In the United States, a person who consumes lots of meat and fat will be synonymous with a large waistline. Tips that are often recommended is to minimize animal fat or fat that is solid at room temperature. The fat is a source of LDL cholesterol.

But a study conducted by Dr. David Jenkins of Michael's Hospital in Toronto, Canada found by doing low-fat diet foods, plus diligent eating cholesterol-lowering foods can result in more waste of bad cholesterol.

He recommends eating fruits and vegetables such as eggplant, apple, wine, strawberries, grains, beans, olive oil and soy products are eaten while on a low-fat diet.

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"Some types of vegetables such as eggplants have a rather sticky properties, so it can bind and remove bad cholesterol from the body," said Dr. Jenkins as reported from VOANews, Monday (05/09/2011).

Jenkins has proven cholesterol levels can go down by following a low-fat diet coupled with eating foods that can lower cholesterol.

A total of 350 men and women participated in the study. All participants are a group of people who need cholesterol-lowering drugs. Some participants were on a low-fat diet and ate some foods, including apples, grapes, strawberries, grains, beans, olives or canola oil, and soy products. While some other participants just follow a low-fat diet. Six months later, researchers looked at the results.

The results showed participants who lowered cholesterol with low-fat diet plus eating some foods that can lower cholesterol, for 6 months has decreased 13-14 percent LDL cholesterol levels in the body. While participants who only follow a low-fat diet, after 6 months experienced a decrease in cholesterol levels only 3 percent.

The researchers say another benefit of following a low-fat diet and eating cholesterol-lowering foods is that participants also experience a drop in blood pressure. The study has been published in the Journal of the American Medical Association.


Overweight person has less motivation to control appetite

Diet desperately often fail when you see good food presented on the dinner table. This is commonplace. Not because of intentions, but this phenomenon actually happens because the brain fat people respond to different foods with skinny people.

In obese people, even when the brain knows the body is not hungry, the brain responds to food as if the body is in need of food. That means that when obese people try to lose weight, they may have to fight with an unconscious nerve center that encourages it to eat.

In people of normal weight, the nervous system that strengthens positive feelings associated with food will die when blood sugar levels return to normal after meals. This signal indicates that the body's need for calories has been met. But in obese people, the center of the nerves in the midbrain remains active when looking at high-calorie foods, even when their blood sugar levels are normal.

"The role of glucose regulation is lost in people with obesity, which may explain the strong impulse to eat in some obese people, no matter how much they have eaten," said Elissa Epel of the University of California, San Francisco, an obesity researcher not involved in this research.

In this study, nine lean and five adult volunteers with obesity were shown photographs of foods such as ice cream, fries, cabbage, or salads while undergoing brain scans. Throughout the procedure, researchers asked the study participants to assess their hunger and how much they wanted the food.

The study participants underwent brain scans several hours after eating. The researchers used insulin pumps to stabilize blood sugar levels of study participants at normal levels (about 90 milligrams per deciliter) or close to low (about 70 milligrams per deciliter).

"Low blood sugar levels can occur briefly during the day, especially in diabetics or metabolic disorders that cause diabetes," said endocrinologist Robert Sherwin of Yale University, one of the study authors.

All study participants reported wanting to eat when their blood glucose was low, especially high-calorie foods. Brain scans show that the prefrontal cortex or part of the brain that controls reason and willpower become inactive when blood glucose is low, while the area of ​​the brain that drives feeding remains active. In skinny people, this tendency is opposite when blood glucose is normal.

"The part of the brain that allows people to consciously exert their willpower is largely inactive in obese people, suggesting that brain differences in obese people can perpetuate obesity," Sherwin said as quoted by on Tuesday (11/11/2011). ).

Although small, the study was well designed and controlled. "It allows us to see accurate results in relatively small differences," said obesity scientist Dianne Lattemann of the Veterans Affairs Puget Sound Health Care System in Seattle.

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