Testosterone is an androgen, responsible for the masculinity in males. It is responsible for the development of secondary sexual characteristics in males, it increases libido, promote the growth of muscles and bones and improves mood and behavior.
The testosterone level in the blood reaches its peak at the age of 20 and with the passage of time it gradually decreases and by the age of 80, its level reaches 10 - 20 % of testosterone level at age 20.

Studies showed that testosterone replacement in elderly, not only improves sexual function, but also prevents osteoporosis, improves cognitive function and overall health of the elderly individual.

In a study published in New England Journal of Medicine on Feb 24th, 2016, 790 men with serum testosterone level less than 275ng/dl were given testosterone and their testosterone level was maintained at a mid-normal range for age 20-40. By the end of 12 months, it was observed that libido and erectile function was improved, as well as patient’s mood, but there wasn’t any effect on the vitality and 6 minutes walking distance.

Other studies, showed testosterone improves cognitive function, bone mineralization and over-all health of an elderly individual.



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