you have no mother
No, there is risk in many activities, not just contact sports.
don't play sports
you will risk 2
Freezing to death(risk of playing inside sports Dying faster and colder than freezing to death(Risk of playing outdoor sports.)
arrow to the knee
Of course not. Its fun for people. No way, extreme sports shouldn't be banned, I like taking the risk.
diet level of involvement in sports exposure to parasites
All sports are good for you, but some do have a high risk of injuries. here are some good, healthy sports, in my opinion. soccer hockey baseball football basketball volleyball