In 2014 Time magazine ran a cover story titled Manopause?!, documenting the rise of the $2 billion testosterone industry, which marketed the hormone as a way to fend off age-related declines in sexual function, energy and strength.
As interest soared, so too did questions about safety. A small study showed testosterone could improve muscle strength in older men, but it also found something unexpected: a higher rate of adverse cardiovascular events such as heart attacks. In 2015 the FDA required manufacturers to add warning labels to inform consumers about the potential risks. Use of prescription testosterone started to decline.
