ADIPOSE TISSUE

The fat is the fat one who made the beads, against which we struggle, but also its usefulness.

Composition of adipose tissue

The adipose tissue is composed of a large number of fat cells calledadipocytes . There are about 20 to 25 billion. All these fat cells contain one or more globules of fat . The more they fill it, the more one grows. The capital of fat cells is not fixed: it increases and never decreases. There are in all stock of small cells, called preadipocytes . They are transformed into adipocytes during pregnancy and when you eat too much. Once installed, adipocytes , whether of origin "birth" or original " pre-adipocytes , "no longer move. They fill and empty but their number remains the same. The fat cells disappear almost never. It drags his stock until the end of his life, always ready to fill and multiply.Only a liposuction actually disappear. This is one reason why it is so easy to regain weight after losing.

Distribution of adipose tissue

In the first years of life, the adipose tissue of young boys and girls are equally distributed throughout the body. Babies, very young children are chubby in the same way. At the time of puberty, sex hormones alter the distribution of adipose tissue . For boys, it decreases in the lower body and increases the top. For girls, it settles down. Female hormones, estrogen and progesterone, secreted by the ovaries, stimulating the creation of fat cells located on the hips and thighs. They also increase in size: these cells are larger, they offer a better storage capacity. The male hormones, androgens, secreted by the testes, play the opposite role: they inhibit the adipocyte glutes and all those in this area. At the time of menopause, hormone secretion dries up. The adipose tissue of women not decreasing really low, and it grows rather above the navel in the absence of hormone replacement therapy. By the fifties, the figure becomes gradually more android, more masculine. In the men who gain weight, their fatgrows more and more on the womb, which is very dangerous to their hearts because it is one component of metabolic syndrome. The ladies are not exempt.