This is why your hormones suck...

If you’re a man over 30, you’ve probably noticed it. Workouts feel harder. Recovery takes longer. Energy isn’t what it used to be. * You might chalk it up to being “busy” or “just getting older.” But the truth is simple: hormones naturally shift as you age. And it’s not your fault—it’s biology. 

The Decline Starts Earlier Than You Think* 

After your 20s, your body begins a slow but steady shift. Two of the most important hormones for men—testosterone and growth hormone (GH)—start to gradually drop. * 

Research shows testosterone levels begin declining in your mid-30s to 40s. Total testosterone drops about 0.4–0.8% per year, while free testosterone—the type your body can actually use—declines even faster at about 1.3–2% per year thanks to rising SHBG (sex hormone–binding globulin) [2]. * 

By age 40, many men are already experiencing noticeable drops in testosterone, and men in their 20s today have levels comparable to men in their 60s just 20 years ago [3]. * Sperm counts have also declined significantly worldwide over the last 50 years, showing that these hormone changes are happening earlier and faster than ever [4]. * That’s not just a statistic—it’s a snapshot of what’s happening inside millions of men. * 

Growth Hormone: The Other Half of the Equation 

It’s not just testosterone. Growth hormone (GH), your body’s key driver for repair, recovery, and lean muscle, also takes a hit. * After the third decade of life, GH secretion drops by about 15% every decade [1]. 

At its peak during puberty, GH secretion is around 150 µg/kg/day. By age 55, it falls to about 25 µg/kg/day [1]. That’s nearly an 80% drop from your prime. * The effects are hard to ignore: more body fat, less muscle, weaker bones, and slower recovery [1]. * 

Why You Feel Different Now 

Put the two together, and it explains why men in their 30s, 40s, and 50s often feel like they’re “fighting uphill.” That’s why the same workouts that once built muscle and shredded fat now feel like they barely move the needle. 

And again—it’s not your fault. You’re not lazy. You’re not broken. You’re running a different biological program than you were in your 20s. 

So, What Can You Do? 

You can’t stop time. But you can take steps to support your body and optimize how you age. Quality sleep, consistent resistance training, proper nutrition, and recovery strategies all help slow the slide. And for men who want an extra edge, formulas made with clinically studied ingredients like BioPro+® can support energy, metabolism, and workout recovery—helping you fight back against the numbers without needles, drugs, or prescriptions. * 

The Bottom Line 

The science is clear: hormone decline isn’t optional, it’s inevitable. Testosterone and growth hormone drop year after year, leaving you with less to work with than in your prime. * But understanding what’s happening is the first step to changing how you respond. 

You can’t control biology—but you can take action. Start making smarter choices now, and you’ll thank yourself in 10 years. 

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. 

Works Cited 

[1] Garcia JM, Merriam GR, Kargi AY. Growth Hormone in Aging. [Updated 2019 Oct 7]. In: Feingold KR, Ahmed SF, Anawalt B, et al., editors. Endotext [Internet]. South Dartmouth (MA): MDText.com, Inc.; 2000-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK279163/ 

[2] Cheng, Haoyang et al. “Age-related testosterone decline: mechanisms and intervention strategies.” Reproductive Biology and Endocrinology : RB&E, vol. 22,1 144. 14 Nov. 2024. doi:10.1186/s12958-024-01316-5 

[3] Travison, Thomas G., et al. "Population-Level Decline in Serum Testosterone Levels in American Men." The Journal of Clinical Endocrinology & Metabolism, vol. 92, no. 1, 2007, pp. 196–202. Oxford Academic, https://academic.oup.com/jcem/article-abstract/92/1/196/2598434. 

[4] Levine, Hagai, et al. "Temporal Trends in Sperm Count: A Systematic Review and Meta-Regression Analysis of Samples Collected Globally in the 20th and 21st Centuries." Human Reproduction Update, vol. 23, no. 6, 2017, pp. 646–659. Oxford Academic, https://academic.oup.com/humupd/article/23/6/646/4035689.