Most women already think about their hormonal health, with biological processes like the menstrual cycle, pregnancy and the menopause having a big effect on their lives.

But according to biologist Dr Matt Kaeberlein, founder and CEO of Optispan , a healthtech company dedicated to improving longevity, hormonal health is just as important for men—particularly middle-aged men. “A shockingly large number of men are dysregulated in terms of hormones when they get in their 50s,” he says.

While precise figures aren’t available, Kaeberlein says that, “on average, men experience roughly a 30-50% decline in free testosterone between ages 30 and 70. You may like

A personal trainer says you should prioritize these three things in your 40s to stay healthy and active into old age

A longevity expe

See Full Page