Answer:I would answer this but I need to see more of the question first
Explanation:
Like I need a set of answers to pick from
True the heart like any muscle strengthens when you use it
Your brain has nerves and those nerves run throughout your system so in that case your central nervous system control everything. It is like a director it tells your heart to pump blood it signals everything it even control your homeostasis and reflex.
Self harm is a very unhealthy way to deal with stress, anxiety, and any other type of unusual situation. It can be very dangerous to your health and leave permanent damage on your body and soul. If you know anyone who is self harming be sure to tell an adult and be as supportive as you can. You never know what someone might be going through! :)