Because of the decline of this hormone as you age, scientists began synthesizing HGH in the 1980s. However, synthetic HGH also comes with many dangerous side effects.
Synthetic HGH can only be injected and must be prescribed. These injections may cause swelling of the hands, feet, arms or legs. Muscle discomfort, joint pain, and aches or stiffness in the hands and feet are also related to injected HGH. In addition, synthetic HGH could increase the risk of diabetes, high blood pressure, and hardening of the arteries.