Hormones that modulate muscle growth include: 1  growth hormone. 2  testosterone. 3  IGF- 4 1. cortisol.  beta-endorphin, 1  and. parathyroid hormone.
When applied topically, cayenne pepper benefits the skin, too. It alleviates pain caused by shingles, osteoarthritis, rheumatoid arthritis and even as part of a natural remedy for fibromyalgia. The fruit of the capsicum plant contains a chemical called capsaicin.
Cayenne pepper contains capsaicin that helps stimulate the proper flow of blood throughout the body and organs. It also strengthens the arteries and capillaries. Plus, it helps reduce symptoms of poor blood circulation like pain, headaches, cold feet and tingling sensations in the legs.