Simplify the following text for a Grade 10 native English-speaking person.
Original: Vocalist Anthony Kiedis , who had resumed addictions to cocaine and heroin in 1994 after being sober for more than five years , approached his lyricism with a reflective outlook on drugs and their harsh effects .
Simplified: Anthony Kiedis had become addicted to cocaine and heroin in 1994 , so some of the lyrics he wrote were about the effects of drugs .