Over the last several decades, multiple studies have documented a decline in average testosterone levels in men across different countries.
At the same time, exposure to endocrine disrupting chemicals has increased worldwide.
Endocrine disruptors are compounds that can interfere with hormone systems. Some act as estrogen receptor agonists or mimic estrogen activity in the body. These are commonly referred to as xenoestrogens.
Documented sources include:
• BPA and other bisphenols used in plastics and food linings
• Phthalates used in packaging and consumer products
• Pesticides and herbicides
• Industrial pollutants
• PFAS compounds
• Microplastics found in water and food chains
These compounds have been detected in human blood, urine, and tissue samples globally.
Research has found that urinary levels of phthalate metabolites and BPA — two common endocrine-disrupting chemicals found in plastics, food packaging, and consumer products — are negatively associated with testosterone levels in men, meaning higher exposure is linked with lower testosterone.
National Library of Medicine
Additionally:
• Obesity rates have risen worldwide
• Adipose tissue increases aromatase activity
• Aromatase converts testosterone into estradiol
• Higher body fat correlates with higher estrogen conversion
Research has also documented declining sperm counts and reduced average testosterone levels in certain populations over the past 40 to 50 years.
Modern environmental exposure is measurably different from historical exposure.
Hormonal exposure has changed globally
• Diet
• Body composition
• Chemical exposure
• Sleep
• Stress
• Physical activity
These variables directly affect endocrine function.
Hormonal health today exists within a different environmental context than previous generations.
2 Comments
James
That really resonates with me. I’ve been feeling drained for a while now and honestly just assumed it was stress or getting older. Hearing that getting your blood work done made such a difference is motivating. I might finally look into testing my levels instead of just pushing through it.”
Davie
This actually explains a lot. I thought feeling drained all the time was just part of getting older, but maybe there’s more to it.