The brain gets used to you taking the drug. Some drugs will affect your neurotransmitters, or messages that get sent to your brain that regulates how we think or feel. You will eventually become dependent on the drug so if you stop you might feel sick or go through "withdrawal". Which people dont want to go through so they will continue to take the drug.
The correct answer is Preparing preschool aged children for school.
I think your best options here are
15) opioids
16) anabolic steroids
Opioids mimic the natural structure of a neurotransmitter
Anabolic steroids are synthetic testosterone
Answer:
A normal heart beats at 60-100 beats per minute, however, the fastest it can go is 300 per minute.
Explanation:
