Dr. Robinson was at it again and wrote an article for Naturopathic Doctor News and Review (NDNR) on this worldwide epidemic. The article is fully cited from the research literature and is an excellent expose on this issue, including explaining the health consequences and what men can do about to fix the problem.
Evidence suggests that testosterone and sperm levels are lowering in men across the globe.
Healthy, optimal serum levels of testosterone profoundly influence men’s health. Low testosterone levels are related to diseases such as cardiovascular disease,1 osteoporosis,2 Alzheimer’s disease,3 and diabetes.4 In addition, and less commonly known and appreciated, testosterone is responsible for healthy neurological function5 and improved psychosocial and behavioral dynamics.6
Research has begun to reveal a measurable decline in testosterone,7-9 as well as both sperm production7,10 and sperm quality,11,12 in men in industrialized countries across the world. Despite research that refuted the assertion of declining sperm,13,14 subsequent French research from 201315again substantiated a decline, and even more recent research – in-depth meta-regression analysis from the Hebrew University-Hadassah Braun School of Public Health and Community Medicine and the Icahn School of Medicine at Mount Sinai16 – again argues for the original claim in the 1990s that sperm levels are indeed waning in many industrialized countries.