The public is introduced to growth hormone through media attention to celebrities using growth hormone for anti-aging, or to high-profile sports figures being stripped of their titles after using growth hormone illegally. This is unfortunate as growth hormone is an important and useful drug and is not intended for use as an anti-aging or performance-enhancing drug. Learn more about this drug and its effects on our immune function, osteoporosis, and the cardiovascular and respiratory systems. Learn about the importance of growth hormone in connective-tissue healing and in its future use in regenerative medicine.