How can I get a good posture and ease off back/neck ache?
Parisian, What you need to do is a good all-round exercise program,as you are young it is important that you start now,as for your bad sitting posture as you know that you are doing yourself no good, then change to a good posture,even change the chair that you sit in,their are chairs that are best suited to best posture.Be warned your problem will only get worse if you fail to do something about it now your problem in the end will have a profound affect on your life.The chair that would suit you best has no back to it,you sit on it with your feet underneath you.[i do not know the name of it when i do i will let you know ok].