Ginseng is viewed as a miracle herb in many parts throughout Asia, and there is clinical research to back up this perception in many instances. The most-researched benefit it provides is its ability to bolster the immune system.
A healthy immune system generally means a healthy person overall, all else being equal. It will help you stay healthy while others around you are getting sick, and could help you avoid other diseases and conditions later in life. If you do get sick, your immune system plays a big part in how long you stay sick.
Ginseng may even be able to help you keep your mental focus and improve your concentration, as well as simply helping you to feel better.