I have seen a few news reports lately about declining testosterone levels in men. Here is a recent study that suggests there is a population-wide decrease in testosterone levels in men.
My first thought was this was related to the obesity problem, since increased abdominal fat lowers testosterone. But researchers controlled for obesity, smoking, and other lifestyle factors. As it turns out, the researchers couldn't firmly provide an answer for what is causing the decline in testosterone.
There is some speculation that it is chemicals, such as insecticides or other chemicals that have estrogen-like effects on the male hormone system. Another possibility is sleep, as explained in this article. I hope to do more research on this interesting subject.
I have seen a few news reports lately about declining testosterone levels in men. Here is a recent study that suggests there is a population-wide decrease in testosterone levels in men.
My first thought was this was related to the obesity problem, since increased abdominal fat lowers testosterone. But researchers controlled for obesity, smoking, and other lifestyle factors. As it turns out, the researchers couldn't firmly provide an answer for what is causing the decline in testosterone.
There is some speculation that it is chemicals, such as insecticides or other chemicals that have estrogen-like effects on the male hormone system. Another possibility is sleep, as explained in this article. I hope to do more research on this interesting subject.