How teens deal with stress may affect their blood pressure, immune system. Most teens get stressed out by their families from time to time, but whether they bottle those emotions up or put a positive spin on things may affect certain processes in the body, including blood pressure and how immune cells respond to bacterial invaders, according to researchers. Source 8f.
I believe this because as a teen I went to the doctor a lot, and depending on what had been going on my levels and moods switched up a lot.