Objective: To observe the effectiveness of Radioda and Astragalus Codonopsis Compound (RACC) on the early injury of liver at highland after severe burn in rats.

Remind: : because of the high yangzhuoyong lake elevation, plain tourists to pay attention to the plateau response, suggest a week in advance to eat rhodiola or carry the burden to carry oxygen.

Objective: To study the effects of folium ginkgo , rholida and tyrosine on free radical metabolism of human body after exhaustion - exercise at high altitude(above sea level 3700 m).