I think Nasa did an experiment with some people living underground for a few months or something, the TLDR was the people living underground ending up living a

I think Nasa did an experiment with some people living underground for a few months or something, the TLDR was the people living underground ending up living a 30hr day. Tryptophan supplementation increases the effect of blue light on the body. However I see an increase in mesenchymal stem cell release through an increase in melatonin to be good thing unlike stem cells from adipose tissue, and melatonin is 4x more potent as an antioxidant than vitamin C. The Circadian rhythms are probably best viewed as the chemical decay of various chemical pathways in the body much like particle decay is for physics. Diet and light can influence them but be mindful of the fact the human body has evolved over hundreds of thousands of years to this planets light cycle and environment, so any deviation like we see with todays tech can have erroneous effects on the body.