The levers, ranked
- Lift properly. Regular strength training is the strongest lifestyle lever you have, and it works in your forties, fifties and beyond.
- Sleep. Most of your daily testosterone is released during sleep, and one short week measurably drops it.
- Lose the belly. Belly fat actively converts testosterone into oestrogen.
- Cut the booze. Alcohol suppresses testosterone production directly.
- Manage stress. Chronically high cortisol works against you.
How long it takes
Sleep and alcohol changes show up in weeks. Training and fat loss build over months. Expect three to six months of consistency before you judge the results.
When to see a doctor
Persistent fatigue, low mood, low libido and loss of morning erections are the prompt. A morning blood test through your doctor is the answer. Do not guess, and do not let a supplement company guess for you.