1A. Playing sports helps blood circulate better.
1B. Watching "SmackDown" too much will make people acquire violent habit.
Are these two sentences grammatical and natural to say?
Thank you very much, teachers,
I am not a teacher, but I think ...
1A would be better written as
Playing sports helps blood to circulate better.
1B should be
Watching "SmackDown" too much will make people acquire violent habits.
or
Watching "SmackDown" too much will make people acquire a violent nature.
1A How about improves circulation?