Have you noticed that with the grunge era the whole drugs scene has also got grungier.
hahah what?!?! Well I mean it changed ( with moods as well )
80's drug of choice was crack/coke so the music was energy driven , and up lifting
90's drug of choice was heroin , which led to more slowed down type of stuff.
BTW One of the most bad ass songs ever is Say Hello To Heaven - Temple Of The Dog
Youtube it , Best grunge song EVER!