Prisoners of a lifestyle that tempts coaches with a constant barrage of food and adrenaline, little sleep and an overflow of stress, the NBA’s coaches battle wellness problems that they all easily could succumb to. “By the end of the season, if you were 6 feet tall when it started, now you’re 5-foot-2,” Washington coach Scott Brooks said. “It just wears you down and you just have to somehow focus on yourself and your health.”