Archive for January 9th, 2008

The theory behind aging

The pituitary gland produces HGH in adequate amounts during youth, but with the advancement of age, something happens to the feedback loop between the somatotrophes (HGH producing cells in the pituitary), the hypothalamus, and the release of IGF-1 by the liver. The workings of this feedback loop have long fascinated scientists, because of the fine [...]