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Rose RootStudies have shown that the compound has an effect on brains serotonin levels. Serotonin is an important brain chemical that affects mood, weight, and sleep patterns. The modern lifestyle has been blamed for lower serotonin levels in the brain, which has been seen as one of the reasons for increased levels of depression, obesity, and insomnia. Studies by the supplement manufacturers in this regard have shown that use of this herb can increase brain serotonin by up to 30%. Its use has also been shown to have a protective effect upon the neurotransmitters dopamine in the brain. It has been suggested that the herb improves neurotransmitter activity by inhibiting their enzymatic destruction and preventing their decline caused by excessive stress hormone release. Rose root also enhances the transport of serotonin's precursors into the brain. Rose Root - StudiesDoes Rhodiola rosea possess ergogenic properties? Int J Sport Nutr Exerc Metab. 2006 Jun;16(3):305-15. Walker TB, Robergs RA. The effect of salidroside on cell damage induced by glutamate and intracellular free calcium in PC12 cells. Asian Nat Prod Res. 2006 Jan-Mar;8(1-2):159-65. Cao LL, Du GH, Wang MW. Evaluation of Rhodiola crenulata and Rhodiola rosea for management of type II diabetes and hypertension. Asia Pac J Clin Nutr. 2006;15(3):425-32. Kwon YI, Jang HD, Shetty K. Effect of salidroside on bone marrow cell cycle and expression of apoptosis-related proteins in bone marrow cells of bone marrow depressed anemia mice. Zhang XS, Zhu BD, Hung XQ, Chen YF. Bioactive compounds from Rhodiola rosea (Crassulaceae). Phytother Res. 2005 Sep;19(9):740-3. Ming DS, Hillhouse BJ, Guns ES, Eberding A, Xie S, Vimalanathan S, Towers GH. Cordyceps sinensis- and Rhodiola rosea-based supplementation in male cyclists and its effect on muscle tissue oxygen saturation. J Strength Cond Res. 2005 May;19(2):358-63. Colson SN, Wyatt FB, Johnston DL, Autrey LD, Fitzgerald YL, Earnest CP.
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