Intravenous infusion of GLP-1 for 48 h in healthy human subjects increased muscle sympathetic nerve activity but had no effect on BP, norepinephrine plasma concentration, or the sympathetic/parasympathetic balance as estimated by the HR variability, suggesting that the increase in sympathetic drive is at least partially compensated by an increase in the parasympathetic activity [53]
Circadian Control of Energy Homeostasis
After 6 months of therapy, those taking GLP1 drugs showed: Elevated risk of androgenic alopecia Elevated risk of nonscarring hair loss No significant change in telogen effluvium risk No significant change in alopecia areata risk At the 12-month mark, the pattern had shifted slightly: Continued higher risk for androgenic alopecia Continued higher risk for nonscarring hair loss A newly increased risk of telogen effluvium Still no change in risk of alopecia areata The apparent absence of a link between GLP1 medications and alopecia areata is especially notable, as isolated case reports have previously suggested an association
This is because adipose tissue [body fat] plays a crucial role in hormone production and regulation, particularly estrogen, she says
Hemoglobin A1c (HbA1c) Why it matters: HbA1c reflects your average blood glucose over the prior two to three months and is the single most important baseline marker for anyone starting a GLP-1 agent
654 (8120): 1055 DOI: 10.1038/s41586-026-10444-4 Cite This Page : ScienceDaily