It's also important to consider that herbal supplements, including valerian root, have been found to contain heavy metals or contaminants, depending on the source and manufacturing process.

Valerian is an herb native to Asia and Europe ... Look for products that are tested by an independent lab for heavy metals, toxins, and contaminants to ensure safety. You may also want to consider ...

The term “metal” is believed to have come from the hippie movement, when “heavy” meant deep or serious. Metal music revolves around a few key components: heavily distorted guitar riffs and ...