Brian Johnson, aka the Liver King, has found great success promoting his ancestral lifestyle (translation: eating cow ...

Insulin-like growth factor 1, also known as IGF-1, is a crucial hormone that significantly affects muscle development and rejuvenation. This hormone is generated by the liver in response to the ...

Biochemical control of acromegaly in noncured patients is usually defined as serum growth hormone (GH) levels <2.0 µg/l, plus normal-for-age serum levels of insulin-like growth factor I (IGF-I).