hi, im 16 years old and training to be a hairdresser which means i spend 8 hours a day on my feet.. is there anything i can do to not feel so stiff? (upper back - half way down is the worse) .. and is there anything i can take for fluid in my needs?.. iv suffuered in the past but nothing worked.. meaning everything my doctor gave me was just temporary  and the problem came back (not as bad but sometimes i get really tired because of my job.. any suggestions?
Since you stand for a long period of time the whole body weight comes on your back. Few things you have to be marked