Oh, the challenge of extra weight, and losing extra weight, and keeping the extra weight off. If you are tired of blaming yourself, then blame your genes. It might be a legitimate reason!  Scientists have discovered a gene mutation that can make people who have just had a filling dinner, feel hungry.

The hormones leptin and insulin are released after eating for the average person. These hormones then tell the satiety-center of the brain that the stomach is full. But, when the signals are transmitted as scrambled, then even if we are full, we're still hungry — and we keep eating.

In studies at Georgetown University researchers, using mice, found a mutation in the brain-derived neurotrophic factor (Bdnf, for short) that can disrupt that signal, leading the rodents to continually eat and rapidly gain weight. The researchers hope there might be a way stimulate that gene and prevent obesity.

Researchers claim this is the first time scientists have been able to show exactly how the gene plays a role in overeating,

[News Medical]