To fight against fatigue that can occur during the day, the World Health Organization (WHO) recognizes the use of ginseng which would stimulate cognitive functions. This medicinal plant originally from Asia is commonly used to stimulate the body of tired people, to restore the capacity for physical work and intellectual concentration and to help convalescents regain their strength. The WHO recommends to favor the consumption of ginseng in the morning so as not to cause sleep disturbances. 

Dosage

• Standardized Ginseng Extract (4% to 7% Ginsenosides): Take 200 mg, 1 to 3 times a day.
• Mother tincture of ginseng: Take 50 drops, 3 times a day for a maximum of 3 months in a row.
• Dried root: Take 500 mg to 2 g of ginseng roots in capsule form or as a decoction (boil 1 g to 2 g of roots in 150 ml of water for 10 to 15 minutes). Take up to 3 g, 3 times a day.