What Is Testosterone and Why Does It Matter?
Testosterone is a hormone produced mainly in the testicles, and it affects nearly every aspect of men’s health. It helps regulate muscle and bone density, fat distribution, metabolism, mood and focus, sex drive and erectile function, and even red blood cell production.
When levels drop, the effects can ripple through both physical and emotional health. This condition—known as low testosterone or male hypogonadism—occurs when the body doesn’t produce enough of the hormone. Ageing is the most common cause, but factors like chronic stress, obesity, certain medications, or underlying medical conditions can also play a role.
The Canadian Urological Association notes that testosterone deficiency (TD) becomes more common with age, though for some men, the decline is significant enough to cause symptoms that affect energy, motivation, and quality of life.
