Testosterone is the hormone which gives men their masculine traits and characteristics. Improved testosterone production during puberty is really what leads to the expansion in the size of extremal male genitalia, growth of secondary male characteristics like facial and torso hair, deepening of voice etc.,  
Not only this, it's in addition the hormone that gives men their higher strength factor. It is additionally accredited with muscle growth and low fat content of the human body, therefore providing an angular shape to the body.  
Nevertheless, best testosterone booster for men production starts off falling placed with age. At the age of 30, males begin experiencing a drop in their testosterone secretion at about one % a year. This sums up to a loss of 10 % over a decade. Not only this, there are couple of variables that aggravate this particular loss. Men who lose testosterone at a higher rate is able to feel the effects more sharply. These are the men who are believed to be undergoing Andropause or even the male form of menopause.  
  
Several of the effects of lower testosterone levels may be listed as below:  
  
  
You are able to overcome all of the above results of low testosterone levels by hormone replacement therapy. However, replacement therapy is not really advised due to the unwanted side effects involved. Some of the unwanted side effects of replacement therapy include fluid retention, development of male breast, increased risk of heart strokes as well as diabetes, infertility etc.,