In sports why do they tell you to stretch before playing a game?

When an inspection is conducted in your workplace you have certain rights. what are those rights

Teenagers and children need sleep. teens need at-least 8-9 hours of sleep. kids need   at-least 10-11 hours of sleep depending on what time they go to sleep. sleep is very important for anyone of any age. read more on -

What is the purpose of pre-exposure prophylaxis