Testosterone is a steroid hormone that is produced in testicles and ovaries. It is the main sex hormone for males, but females have trace amounts of it as well. Increasing testosterone levels can cause rapid gains of muscle mass and vitality in only a matter of weeks. Having healthy levels of testosterone is vital as people age. People with healthy or increased amounts see many health benefits. Exercise is the obvious way to start increasing your testosterone naturally. Lifting weights is the best form of exercise for this specific purpose, although, any form of exercise will do. Caffeine and creatine monohydrate are a couple of supplements that may further boost your levels, however, only when combined with a training program. Your diet plays a huge role into maintaining or increasing your hormone levels. Make sure to eat balanced protein, carbs, and healthy fats to ensure results. Minimize your stress, as difficult as it may seem, stress will suppress your hormones from being in a healthy balance. Get outside or begin taking a Vitamin D supplement. It has many more health benefits that just increased testosterone levels. Sleep is very important not only for overall health, but the human body works wonders when operating on high quality sleep. Lastly, avoid alcohol and drugs as much as possible. These things are just a few simple ways that an individual can combat low testosterone levels.