During the season changing period,dramatic diurnal temperature difference increases the risk of catching illness .In addition to getting exercise ,drinking plenty of water and other conventional healthy routine ,a little help from natural plant extract dietary supplement may boost your immunity .
1.Ginseng
Ginseng is one of the most popular herbal remedies in the world today which is originate from cooler area in eastern Asia .It is known to restore and enhance normal well-being .The plant extract from Ginseng has been used to ameliorate a number of different conditions including cognitive function,hypertension , hypercholesterolemia and sexual dysfunction in men.Studies showed ginseng may treat and prevent influenza by improving the survival of human lung epithelial cells infected with influenza virus.
2.Green tea
Green tea is made from the leaves of Camellia sinensis .Green tea extract is used as plant extract dietary supplements and sometimes a alternative treatment because it contains natural antioxidants including green tea catechins (GTC) and Egcg .Early researches showed that green tea intake reduces cold and flu symptoms and the duration of illness.
3.Rhodiola rosea
Rhodiola is a genus of perennial plants in the family Crassulaceae that grow in high-altitude and other cold regions of the Northern Hemisphere. Rhodiola rosea have been widely exploited in the traditional medicine of many countries and the Rhodiola rosea Rhodiola rosea is proved to possesses adaptogenic activities in a number of clinical trials.
