1dec2bde_Stress__Holistic___Why
[Supplement] 3 Stars Rhodiola 170 mg daily of a standardized herbal extract [Why] 
Rhodiola has been shown to promote feelings of well-being and support mental function. The herbs discussed here are considered members of a controversial category known as adaptogens, which are thought to increase the body's resistance to stress, and to generally enhance physical and mental functioning.80 , 81 Many animal studies have shown that various herbal adaptogens have protective effects against physically stressful experiences,82 , 83 but whether these findings are relevant to human stress experiences is debatable. Animal studies have demonstrated protective effects of rhodiola extracts against physical stresses.84 , 85 , 86 A double-blind study of healthcare workers experiencing the stress of night duty found that taking 170 mg per day of a standardized rhodiola extract prevented some of the decline in a set of mental performance measures during the first two weeks. However, when this regimen was repeated after a two-week period of not taking the extract, rhodiola did not provide protection from mental performance decline.87 In another double-blind study, 100 mg per day of the same extract was given to medical students during a stressful exam period. Those taking the extract reported a better sense of general well-being, and performed better on tests of mental and psychomotor performance.88 A third double-blind study of military cadets performing a 24-hour duty showed that 370 to 555 mg of rhodiola extract per day significantly reduced mental fatigue, as measured by several performance tasks.89 Another double-blind trial confirmed the effectiveness of rhodiola for the treatment of stress-related fatigue.90
Stress (Holistic)
Why