Addiction

Addictions are excessive practiced habits which are controlling the individual’s life.

This can mean both ad- & disadvantages, it’s still extreme tough.

Rewards are the results of practicing certain tasks.

The path of the least resistance is desirable.

Instant gratifications are addicting because little to no effort was required to get them.

Moderation plays a key factor in association to addictive habits.
However, there are specifics within, for example:
It’s a day & night difference between listening to music the whole day or consuming synthetic substances. Music is acoustic, its sound and can result in, if overdone, hearing damage due to excessive power volume.
Synthetic substances on the other hand are affecting the body from within once consumed, there’s no discussion about that. Even if it’s a little bit, once it’s in the body it’ll cause an effect.

Humans have the potential to get addicted to almost anything.
Be it their work, substances, video games, porn, food, masturbation, sex, media.
This enumeration will never be complete.