1. Just like any addictive formula or drug Caffeine... 2. Every substance or formula like the varieties of drugs to foods has an different effect on you body just like caffeine... 3. Your brain works in different ways wether its to the way you respond to certain situations, or the amounts of something you consume
I’d say a song writer simply because more people listen to music as well as the fact that they need things that people can relate to or even just something or someone they know of in that song that’ll make the writers song more interesting and catchy