Re: Why is Physical activity important?

Lots of good reasons. Here are just a few:

Scientists and doctors know that phycial activity has immediate and long
term benefits:

Short term - helps:

build muscles and bones
control body weight 
stress relief
better sleep

increases social skills and feeling of community, especailly with team sports

Longer term - helps:

protection from heart disease, high blood pressure, lower blood cholesterol
controls weight