"Lithium" was a nightmare to record.
The majority of the songs on Nevermind were recorded in two or three takes. "Lithium" was an outlier. After three or four failed attempts, an enraged Cobain abruptly changed gears and led the band through "Endless, Nameless," a caustic song that would be released as a hidden bonus track on later pressings of Nevermind. When they were finished, Cobain smashed his guitar to pieces, effectively ending the session for the day. Cobain wasn't the only one having trouble with "Lithium." Vig suggested that Grohl plays to a click track, a metronome tool drummers use to keep time. Grohl was devastated, believing he'd never be good enough to be a session drummer. Grohl went
Not all the useful DNA in your chromosomes comes from your ancestors some of it was borrowed from elsewhere.
Lack of exercise and obesity are the two major environmental variables for insulin resistance (and type 2 diabetes).