There are two types of adipose tissue or fat stored in the body – white fat and brown fat. White fat is the one people who consider themselves as fat see in the mirror. They are found in the abdominal area, thighs, inner arms and in breasts in women. Brown fat is found mostly in hibernating animals and infants. Brown fat functions as a heat regulator particularly an insulator in the body of animals living in cold areas so with infants as they have a premature hypothalamus – the part of the brain that controls the body temperature.
Natural Health News — People with higher levels of brown fat, or brown adipose tissue, in their bodies have better blood sugar control, higher insulin sensitivity and a better metabolism for burning fat stores, according to new data.
Study of the biological activities of brown fat has increased in recent years and experiments with mice, for example, have shown that it takes sugar out of the bloodstream to burn calories and maintain core temperature.
According to a research held in the University of Texas Medical Branch (UTMBbrown fat can regulate blood glucose levels. Its activation could be a probable medical weapon to combat diabetes.
In a paper in the journal Diabetes, the researchers report on a study to compare otherwise similar healthy men with either high or low levels of brown fat tissue on their resting energy expenditure, glucose usage and insulin sensitivity. To do this five healthy young male volunteers were asked to sleep in climate-controlled chambers four months. The men went about their normal lives during the days, then returned at 8pm every evening.
All meals, including lunch, were provided, to keep their caloric intakes constant. They slept in hospital scrubs under light sheets.
For the first month, the researchers kept the bedrooms at 75° F (24° C) , considered a neutral temperature that would not prompt moderating responses from the body. The next month, the bedrooms were cooled to 66° F (19° C), a temperature that the researchers expected might stimulate brown-fat activity (but not shivering, which usually begins at more frigid temperatures).
The following month, the bedrooms were reset to 75° F (24° C), to undo any effects from the chillier room, and for the last month, the sleeping temperature was a balmy 81° F (27° C).
Turn down the heat for health
Blood and breath samples were collected for complete analysis. These were examined for changes in blood sugar and insulin concentrations, hormones and in the production rates of oxygen and carbon dioxide. Brown and white fat tissue samples were also enunciated to analyze their differences in their production of energy and genetic coding.
Most striking, after four weeks of sleeping at 66° F (19° C), the men had almost doubled their volumes of brown fat. Their insulin sensitivity, which is affected by shifts in blood sugar, improved. The changes were slight but meaningful.
This study shows how brown fat can be activated and how it can increase energy outlay thus burning them. Overweight and obese people can benefit from this. The better news is that brown can more effectively help the body regulate blood glucose levels. This is very notable news for people who are insulin-resistant and diabetic. Even greater news is that brown fat may be proven to prevent accumulation of diabetic tissues.
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