you need to stretch before sport or games because:
muscles work best when they are warm, a sudden stretching of cold can damage it, it is best to warm up with stretching exercises and gentle jogging before doing anything strenuous.
When you wamr up you want to bring your heart rate slowly up while stretching out the muscles, waking them up, getting them ready for a work out. When you cool down you want to slow the heart rate...
If you don't warm up before and exercise you can seriously hurt yourself. Plus, it will get you pumped before a game or run. I'm in 6th grade and at my school we warm up every day, and then run a...