Testosterone
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Studies have shown that men who have higher levels of testosterone are at lower risk of erection troubles and decreased libido but there is uncertainty about how that relationship works. Men who are healthy tend to have higher testosterone levels and their overall health may be the source of any superior sexual health or desire. Shindel says that testosterone should not be considered a cure-all and does carry with it some health risks. If you do want to investigate testosterone options, he recommends consulting with a medical professional who has expertise in that area.