A gradual decline, not a cliff

Most men experience a gentle decline in testosterone with age. Symptoms that may indicate clinically low levels include persistent fatigue, low libido, reduced morning erections and loss of muscle mass.

Lifestyle levers that help

  • Sleep — Most testosterone is produced during deep sleep.
  • Resistance training — Especially compound lifts.
  • Body composition — Excess visceral fat lowers testosterone.
  • Stress management — Chronic cortisol suppresses testosterone.

A symptomatic, properly timed (morning) blood test ordered by a clinician is the only reliable way to evaluate testosterone status.