Decline of Testosterone

What drives the physical engine of a man? The fundamental biological differences between male and female in size, strength, energy, stamina, thought and behavior is determined largely by a powerful hormone called testosterone. The bodies of males make 10 to 20 times more testosterone than females. A slow drop in testosterone is a normal part of aging, sometimes called “andropause” or “male menopause.” Apart from this, something else has been happening over the last 100 years. Read more at “A Crisis in Modern Masculinity”