Testosterone
Why has testosterone in men declined year after year for the past 5 decades? More men each
year are diagnosed with low T than ever before. Testosterone has declined by 1% each year
over the past 50 years. The average testosterone of a man 50 years ago was 50 points higher
than a man today. The average testosterone of a 35-year-old man today is approximately
475ng/dL. The average testosterone of a 35-year-old man in 1970 was 525ng/dL. The decline of
testosterone may have several different reasons, and here are a few:
- Lifestyle Changes: Modern lifestyles, including increased sedentary behavior, lack of
physical activity, poor sleep patterns, and unhealthy dietary choices, may play a role in
declining testosterone levels. - Obesity: The rise in obesity rates worldwide has been associated with lower
testosterone levels. Excess body fat, especially abdominal fat, can lead to hormonal
imbalances and decreased testosterone production. - Environmental Factors: Exposure to certain environmental chemicals, such as
endocrine-disrupting compounds found in plastics, pesticides, and industrial pollutants, has
been linked to hormonal disruptions, including lower testosterone levels. - Stress: Chronic stress, both psychological and physiological, can negatively impact
hormone production and regulation, potentially leading to lower testosterone levels. - Aging: Testosterone levels naturally decline with age. However, the observed decline in
testosterone over the past 50 years appears to be steeper than what can be attributed solely
to the aging process.
Testosterone levels aren’t the only problem. Sperm counts are also dropping significantly, and
some reproductive disorders, like testicular cancer have increased.
If you are concerned about your testosterone, it may be a good idea to do the following:
- Stop using plastic bottles and containers completely.
- Stop using products that have chemicals or ingredients you are unfamiliar with. This means
deodorant, shampoo, detergents, toothpaste, cologne, lotions, gels, and any other products you
put on your body must be all natural with no chemicals or ingredients that you do not recognize. - Implement a testosterone increasing training and workout plan.
- Lower your stress.
- Consume the necessary vitamins, minerals, and foods that will support testosterone
production.
- Endocrine Disruptors [Internet]. National Institute of Environmental Health Sciences. [cited
2022 Nov 22]. Available from: https://www.niehs.nih.gov/health/topics/agents/endocrine/index.cfm - Travison TG, Araujo AB, Kupelian V, O’Donnell AB, McKinlay JB. The relative
contributions of aging, health, and lifestyle factors to serum testosterone decline in men. J Clin
Endocrinol Metab. 2007 Feb;92(2):549–55. - Nyante SJ, Graubard BI, Li Y, McQuillan GM, Platz EA, Rohrmann S, et al. Trends in sex
hormone concentrations in US males: 1988-1991 to 1999-2004. Int J Androl. 2012
Jun;35(3):456–66