B. it decreases your resting heart rate
The cells in the heart need a constant supply of nutrients / oxygen and to get rid of their waste products ans that why it needs its own special circulatory system.
Answer:
be happy love the way you are
Explanation:
Saying something nice about them. Now you may ask “why” ? .. the reason is kindness is limited to a certain degree, hence, you can KILL someone by being kind and maybe even positively impact the person into being kind themselves :)