Posture is the position you maintain while standing, sitting or lying down. You have good posture when your position creates the least amount of strain on supporting muscles and ligaments when you move or perform weight-bearing activity. It has many advantages. Some of them are :

1.  Better for Your Body : Good posture and back support are essential for avoiding back and neck pain. Good posture also prevents muscle aches and muscle fatigue. It keeps your bones and joints in proper alignment so you use your muscles more efficiendy, preventing strain and overuse.
2. Future Health : Proper posture reduces abnormal wear and tear on joint surfaces, which can lead to arthritis. It also reduces stress on ligaments that connect spinal joints. Good posture helps you avoid developing an abnormal permanent position, which can cause spinal disk problems and constricted blood vessels and nerves. Good posture also protects spinal joints from injury and deformity.
3. Breathe Right: Good posture helps to open the airways and ensure proper breathing. Proper breathing allows enhanc-ed oxygen flow in the cardiopulmonary system. The blood then carries sufficient oxygen to the nervous system, organs and other tissues, so they function effectively.
4. Looking Good : Maintaining good posture does wonders * for your appearance. Proper posture can help you make a good
   first impression, and appear more attractive and-confident.
5.  Good posture : Good posture prevents fatigue because muscles are being used more efficiently, allowing the body to use less energy.