Osteopathy is a drug-free, non-invasive manual therapy that aims to improve health across all body systems by manipulating and strengthening the musculoskeletal framework. An osteopathic physician will focus on the joints, muscles, and spine. Treatment aims to positively affect the body’s nervous, circulatory, and lymphatic systems. Osteopathy is a type of alternative medicine that emphasizes physical manipulation of muscle tissue and bones. Practitioners of osteopathy are referred to as osteopaths. Its name derives from Ancient Greek "bone" and "sensitive to" or "responding to".