Answer by JKismyhusbandbae: Repeated drug use may lead to drug tolerance which occurs when a user requires larger amounts of the drug to achieve the desired effect.
I'd say trustworthiness, your friend is trusting you with keeping a secret that he or she will only share with you. I hope this helps :)
Answer:
Self-reference effect
Explanation:
This is a concept which supports the idea of any individual to have a better memory of event he is she is involved with directly than material that have less personal reference.
This is so because it Is natural to encode, store and retain your personal experience.