In most sports you can just simply fall over and twist your ankle! In physical sports like Rugby you can get injured by going into contacts with another player.
Not adequately warming up can result in sores or pulled muscles. And, you should know your limits when exercising. Always cool down at the end along with warming up at the beginning.
Mainly overexertion injuries.
Your computer could get viruses, become slow, or have broken parts if you use it improperly.
They can temporarily, but some if improperly used can cause additional damage.
Chords and notes will clash and it won't sound right.
Yes that could happen.You can be stuck with a needle that was dispose of improperly. Yes it can.You can be stuck by an improperly dispose needle.
Kegel exercises are completely safe for a healthy person to do.
If you exercise and drink no water you decrease the amount of water in your body. You become dehydrated. This is not healthy.
There are many different calming exercises a person can do. Most popular exercises are breathing practice, muscle relaxation and mind relaxation.
That depends on the specific medication you're talking about. Some will do very little to someone without the condition they are made for. Some can kill a person if taken improperly. The range of possibilities is just about endless.
the lungs
fat-free milk and milk products and resistance-training exercises
Your heart