as much as you can handle
Do excerise!! That equries shoulder excerise!
the skeleton has to undertake the pressure your muscles are putting on them during excerise.
Do excerise and by not eating too much junk food.:)
--IaminNeed's answer--I would say,uhmmm,considering your 13.I think 100.I am like 11 and I way 129.0/...wow!!But make sure you dont excerise to much because that can make you shorter.
exercice
excerise and eat healthy
Take up as much excerise activites the camp has to offer - and change your diet!
hacer ejercicio
excerise and a healthy diet
Children aged under 5 years should do 180 minutes every dayYoung people (5-18 years) should do 60 minutes every dayAdults (19-64 years) should do 150 minutes every weekOlder adults (65+ years) should do 150 minutes every week
You should definetly start to eat fast food and many carbohydrates. Also never go have excerise!!!
DIET AND EXCERISE.