One of the most well-accepted of these is ginseng. Traditionally thought to restore 'qi' or life energy, ginseng stimulates the central nervous system and increases nitric oxide production in the immune system cells, vascular endothelial cells, arteries and erectile tissues.
Ginseng is also used to improve performance, maintain health during intense periods of exercise, build muscle mass and reduce body fat. It also assists in normalising body system functions altered by stress.
Another herb that increases work output and overall energy is Ashwagandha (Withania somnifera). This boasts adaptogenic properties, and enhances endurance and strength.
Then there's the stress-relieving herbs: these include the antioxidant group such as Ginkgo biloba , garlic, grape seed, and milk thistle. Increasing demands on the body, such as intense exercise, can produce free radicals that cause oxidative stress. These herbs help prevent this stress from occurring, and in so doing, keep your body at its peak for longer periods of time.