Rhodiola Root, also known as Rhodiola rosea, is classified as an adaptogen—a plant that can help your body respond to stress. For centuries, it’s been used for medicinal purposes in the colder regions of Europe and Asia. Studies have shown that Rhodiola can strengthen the body’s resistance to stress, as well as promote a better mood and mental performance. It can help you relax before bed and achieve restful sleep by strengthening the body’s resistance to stress and fatigue.