Retatrutide vs Tirzepatide: What the Receptors Mean
Tirzepatide activates GLP-1 and GIP receptors. Retatrutide adds glucagon on top. That third receptor changes energy expenditure and what needs monitoring.
10 min read
IGF-1 and GH interpretation: why serum GH tells you nothing
Serum GH is useless for monitoring growth hormone status. IGF-1 is the 24-hour integrated signal that actually reflects GH output and how to interpret it.
10 min read