Studies show that a chemical found in plastics and soap can affect insulin resistance and weight in men. Further to this it is known that phthalates, which are in various shampoos, soaps, lotions, lubricants, paint, pesticides, plastics and cosmetics and in some drugs can affect reproduction. The study shows that almost 75% of our population are affected. Results are from test cases in their urine tests.
These chemicals and other environment pollutants could lower testosterone levels and affect sperm quality. The effects have been studied in the USA over the last 30 years or more.
Researchers have theorised that this class of chemicals, as well as other environmental pollutants, may be lowering testosterone levels in men and responsible for the substantial declines in testosterone levels and sperm quality that have occurred in the United States and other countries over the last several decades.
Animal studies in the past found that these phthalates have led to lower testosterone and recently it was also found they led to poor semen quality in men and changes in the reproductive organs in male children.
It was also found that because of the lower testosterone men put on weight around the middle and were more predisposed to diabetes. They analysed many different body samples such as urine, blood etc. from people of different ethnicity for over 3 years and of the men participating found a definite link. Lowered levels of testosterone can also cause other problems in men and it is important that this is checked. All men should take a zinc supplement given the lack of minerals in our water and the deficiency this leads to in most men in Australia. It is also important to not wear underwear that is too tight and to not have showers that are too hot. This becomes especially important if your partner is attempting to fall pregnant. Your diet, amount of alcohol you drink and whether you smoke or not will all affect your sperm levels.