Complex sentence: In 2006 interview with "60 Minutes", Hoffman said that he had recovered from drug and alcohol abuse when he was 22 years old, but in 2013 relapsed, checking into a rehabilitation program for about 10 days because of problems with prescription pills and heroin.
Split into simpler sentences: In 2006 interview with "60 Minutes", Hoffman said that he had suffered from drug and alcohol abuse before recovering at age 22. Hoffman relapsed many years later, checking into a rehabilitation program for about 10 days in 2013 because of problems with prescription pills and heroin.