Other possible benefits include, improvement in memory, alertness, and endurance, and an increase in sperm count. It is also used to treat herpes viral infections, headaches, insomnia, angina, and bone marrow suppression caused by chemotherapy. It can help increase the level of testosterone in the body. It has exhibited the ability to inhibit the replication of certain viruses in laboratory studies. Presently, this herb is being studied to find out its efficacy in treating HIV.