I’ll help you with the reasons! Some teens use smoking, drinking, binging as a coping mechanism which then leads to it being an addiction. Another reason is peer pressure, some teens are pressured to engage in those unhealthy behaviours with their peers. It can be unhealthy in many ways due to how it negatively affects the body, mindset and relationships of that person
The answer is shown down below, hope this helps!
It is positive feedback mechanism
Because the nerves in your skin shoot a message of pain to your brain. The brain then sends a message back telling the muscles in your hand to pull away.
Hope it helped. :)
Drowsiness
Dizziness when you change positions
Blurry vision
Dry mouth
Rapid heartbeat
Sensitivity to the sun
Skin rash
Menstrual problems
Problems with sex
Enlarged breasts (even in males)