看一下下面这段话有没有语法错误

看一下下面这段话有没有语法错误
Hello!Everybody.Welcome to the most handsome man's TV show.This is my first program,the keyword is sports!
Everybody knows that sports is a very important part in our life.But how to exercise better?Mr.handsome has the answer.
Firstly,a lot of people think that the best time to exercises is morning,around half past five to eight o'clock.But NOT the sooner the better.Especially in the fall and winter.If the weather isn't warm,Is apt to cause disease.
Secondly,don't exercise after breakfast,if you do that,it will dispersed blood supply,affecting digestion.Of coruse,drink some water isn't matter.