Article continues below advertisementBen Affleck is once again worrying those closest to him, with friends telling OK! they fear the actor is sliding into self-destructive habits after being spotted repeatedly indulging in junk food, cigarettes and caffeine during a turbulent period in his personal and professional life.The Oscar winner, 53, has been photographed in recent days eating fast food in his car in Los Angeles, reigniting concerns among loved ones who believe stress and ongoing drama have pushed him off the healthy path he once worked hard to maintain.