Complex sentence: In real life the man has had four heart attacks, the first at age 37 in 1978, and who underwent quadruple bypass surgery in 1988 and had a pacemaker and defibrillator implanted in 2001.
Split into simpler sentences: In real life the man has had four heart attacks--the first at age 37. He underwent quadruple bypass surgery in 1988 and had a pacemaker and defibrillator implanted in 2001.