Valerian root promotes sleep by increasing gamma-aminobutyric acid (GABA) levels in the brain, which helps control nerve ...
Side effects are more common when you take valerian ... Roh D, Jung J, Yoon K, et al. Valerian extract alters functional brain connectivity: A randomized double-blind placebo-controlled trial.
Using products that contain valerian extract rather than whole valerian ... but it's possible to take too much. Side effects are more common when you take valerian root in higher doses.