Please enjoy these articles ( we already know all this, but of course, it helps that science supports what we have already intuitively figured out!).
1 Yoga and cortisol: http://www.ncbi.nlm.nih.gov/pubmed/26228429
2 Phthalates and hot flashes: http://www.ncbi.nlm.nih.gov/pubmed/26867866
3 Alcohol, PMS: http://online.liebertpub.com/doi/abs/10.1089/jwh.2006.0202
4 Sweat for detox: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3504417/
5 Social closeness raises progesterone: http://www.ncbi.nlm.nih.gov/pubmed/19362559