I had never heard of this supplement, but have since learned that it comes from a plant with yellow flowers and bears the full name Rhodiola rosea. It's also called arctic root since it grows at high altitudes in cold regions.It's been used in traditional medicine in Russia and theScandinavian countries for centuries to treat a whole slewofissuesincluding fatigue,poor attention span,migraines, and decreased memory.It may also preventdepression,enhance the immune system,and increase sexual energy