IGF-1: Your key to Muscle Cell Hyperplasia
By George Spellwin
IGF-1 stands for insulin-like growth factor, it’s a research polypeptide hormone that is similar in structure to insulin and has tremendous anabolic effects in adults. IGF-1 is naturally found in the body and peaks during...
Hyperplasia vs. Hypertrophy in Skeletal Muscle
Lyle McDonald
I received the following question in the mailbag and, for a fairly short question I’m going to give a fairly long answer since it gives me something to write about today.
Question: Does the number of fast/slow twitch muscle fiber...