question: I'm a 16 year old student and have to continuously study for upto 12-13 hrs a day.So the main thing is i bearly get any physical activity.I also tend to have lower back ache so i started taking 1 or 2 packets of electral everyday.it does give momentary relief but i wanted to know if there are any side effects.and could you suggest if it actually works or maybe some other alternativ to curb my backache.thanks...