Adaptogens have been used to deal with the adverse affects of stress on our bodies. Serenity Forumla by Natural factors is a decent product. It contains Ashwagandha. There are a lot of studies with the more popular adaptogens - here is one:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3573577/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3573577/