S5B) [33, 34]
Hypothyroidism can slow heart rate dramatically, sometimes reversing completely with thyroid hormone replacement therapy within 6-8 weeks
O'Brien S, Kantarjian H, Keating M, Koller C, Andreeff M , Feldman E, Beran M, Escudier S, Hester J, Robertson L, Talpaz M
The mechanisms of action are entirely different, and the compounds work on separate biological systems
GHK-Cu is a compound which has a long history of safe usage in skin care and which has been studied extensively in animal experiments, and in cell and tissue culture studies
In addition to the well-established benefits of CR, multiple studies have demonstrated that during intermittent fasting (IF), neurons undergo an adaptive response mediated by elevated BDNF levels, which enhance neuronal resilience and plasticity in response to metabolic stress 40,41,42