if you keep on putting your hands pressing on left chest does it feel like it is beating fast? If you concentrate on your heartrate by keeping hands in chest do you feel like your heartbeat is high?? Is this normal?

The most common stereotypes could be that boys don't cryboys don't get emotional boys are never as mature as girlsboys are lazyetc.

That's  a project for you to do. btw your teacher probably uses a plagiarism detector and if you do copy anything on this site she/ he will find out and instead of getting a good  or bad grade you'll  get a 0 no exceptions, and they'll  probably call ur parents. so do some research ask friends and fam to you.

  separated twins develop traits that differ according to the environments in which they are raised.