Melatonin and Immunity

Melatonin plays a complex role in regulating the immune system, acting as both an activator and an inhibitor depending on the context. While it has the potential to enhance immune responses and control inflammation, there is currently no evidence to suggest it can prevent or lessen the severity of COVID-19. The hormone's production is influenced by light cycles and decreases with age, impacting over 500 genes related to circadian rhythms and immune function.