The hypothalamus, the part of the brain that regulates body weight, there are more than a dozen chemical signals in the brain that tell your body to gain weight, more than another dozen that tell your body to lose it, and the system works like a thermostat, responding to signals from the body by adjusting hunger, activity and metabolism, to keep your weight stable as conditions change.
Hipotalamus, pjesa e trurit qe rregullon peshen e trupit, ka me duzina sinjale kimike ne tru qe i thone trupit tend te marin peshe, me shume se sa nje duzine tjeter qe  i thone trupit ta humbasi ate, dhe sistemi punon si nje termostat, duke ju pergjigjur sinjaleve te trupit duke pershtatur urine, aktivitetin dhe metabolizmin, ta mbajne trupin ne stabilitet ndekohe  qe kushtet ndryshojne.