According to many scientists testosterone therapy can delay aging and can promote general health in men. It is known that testosterone therapy increases the muscle mass, sharpen the memory and concentration, and increases the energy levels. However, it is still not known if testosterone has anti-aging abilities as this field is not completely explored.
Testosterone is a male hormone that 
is produced mainly in the testes. It has multiple functions in the male body and it is responsible for:
• Bone density
• Distribution of fat
• Muscle strength and mass
• Production of red blood cells
• Sex drive levels
• Production of sperm
Men who have low testosterone levels are often treated with application of synthetic hormone in the form of injections, patches or gels.
As mentioned above, testosterone therapy is believed to be the ultimate anti-aging formula. However, the benefits of this male hormone are not clear. Scientists claim that testosterone therapy can make men more vigorous and energetic as they grow older. In addition, some experts claim that this therapy can improve sexual energy and drive, and can help for treatment of impotence. It is important to consult a doctor who will explain you all benefits and disadvantages of testosterone treatment.