Key takeaways
- Total testosterone falls by roughly 1% a year in middle-aged men, and lifestyle can speed up or slow that drift.
- Strength training, enough sleep and a healthy weight are the best-supported ways to support your levels.
- If symptoms persist, a morning blood test is the next step before any supplement.
What changes with age
In the Massachusetts Male Aging Study, which followed middle-aged men for years, total testosterone declined by roughly 1% a year, and free testosterone fell faster. Gaining weight and sleeping less often accompany ageing and can lower levels further, so the drop is not purely a matter of birthdays.
Training
Strength training builds and preserves muscle, which supports healthy body composition. Testosterone rises briefly after a hard session, but that bump is short-lived. The long-term benefit comes from the muscle, the better sleep and the leaner body that regular training brings. A target from the protein calculator helps you recover from it.
Sleep and weight
Short sleep and extra body fat are the two best-documented fixable factors. We cover them in detail in What really affects testosterone levels. Start with the sleep calculator and the goal planner.
Testing first
Tiredness and low drive have many causes. Guidelines advise confirming a suspected deficiency with repeated morning blood tests. The lab unit converter helps you read results reported in different units.
Where supplements fit
Zinc and vitamin D matter if you are short of them. Herbal ingredients common in “testosterone support” formulas, such as D-aspartic acid and ginseng, have mixed results in studies. Supplements are best seen as an add-on to sleep, training and nutrition, not a replacement for them.
A product to consider
Testolan
A supplement marketed for male vitality and testosterone support. See the seller’s page for the full ingredient list and serving size.
- Positioned for men who already have sleep, training and nutrition in place.
Consult your doctor before use, especially if you are pregnant or breastfeeding, have a medical condition or take medication. This product is not intended to diagnose, treat, cure or prevent any disease.
Try the related tools
Protein calculator · Sleep calculator · Goal planner · Lab unit converter
Sources
- Feldman HA et al. Age trends in the level of serum testosterone and other hormones in middle-aged men: Massachusetts Male Aging Study. J Clin Endocrinol Metab 2002. Find on PubMed
- Vingren JL et al. Testosterone physiology in resistance exercise and training. Sports Med 2010. Find on PubMed
- Bhasin S et al. Testosterone therapy in men with hypogonadism: an Endocrine Society clinical practice guideline. J Clin Endocrinol Metab 2018. Find on PubMed
- Leproult R, Van Cauter E. Effect of 1 week of sleep restriction on testosterone levels in young healthy men. JAMA 2011. Find on PubMed
Links open a PubMed search for each paper so you can read the abstract and full citation. Always check the original study.