If you don't know how that kind of thing works, you are likely to make mistakes regarding it. If you know how it works, you can prevent yourself from making mistakes that could endanger yourself and/or others.
FOR EXAMPLE:
Let's say you've been taking melatonin every single night to help you sleep. After a while, you may notice that it begins to take more and more melatonin for it to work like it did the first night you took it. You were taking one per night, but you end up taking 3 per night to get the same effect because your body has resistant to the drug.
ANSWER:
After a while of taking antibiotics, microorganisms in your body may become resistant to the antibiotics (which is potentially dangerous). This occurs when bacteria change to reduce the effects of a drug.
Social conformity can peer pressure you, self discipline can influence you do date or not deciding on what you believe you deserve. And impulse versus delayed gratification can influence you by making drastic and not very though out decisions.
