It could, and it has. While reasonable exercise helps keep most people healthy, EXTREME exercise, especially for someone in poor health (Heart disease) could cause a heart attack. The US Military requires soldiers above a given age to have a cardiac stress test before taking a Physical Training Test- which is severe exercise.
Not likely, but it could. You could kill someone by throwing a rock at them. Worked for Goliath.
Exercising a lot probably won't kill an embryo, but it could rub the embryo of energy and nutrition if it is overdone. Doctors normally do not recommend strenuous exercise when someone is pregnant.
Hornets can kill someone if they are allergic to the venom. And if enough of them sting someone, they could go into shock and that could be a problem.
no
it could kill several people if close together..........................
Not likely, but you could kill someone with a bicycle. They were not designed to kill or injure.
No.
It could if someone stabbed you in the heart with one...
It could kill someone.
# Well am I sure that someone could, just as someone could kill any other celebrity or group or famous person, or any other regular person!
no. the more exercise the better.
sledding is dangerous because it could kill someone.