outcome

stress

ReviewPreliminary evidence

Can a Calming Supplement Really Help You Sleep?

A new sleep-nutrition review places L-theanine in the serious sleep-support conversation — but the strongest read is relaxation and wind-down support, not a guaranteed insomnia fix.

Meta-analysisStrong evidence

Ashwagandha for stress looks promising — but it’s not an instant calm button

People usually want to know whether ashwagandha meaningfully helps everyday stress, how fast it works, and whether the hype around cortisol is backed by actual trials.