The stroke he had may have had little to do with coaching basketball (including all the hours and "pressure" that goes into it). Miller have had to make some changes in his lifestyle - but coaching may be only a small factor. Seeing Rick Majerus coaching basketball at Saint Louis and still carrying a lot of weight around seems to be a bigger health concern - given his history of heart trouble/heart disease. Most people in those situations are not willing to change the profession lifestyle they love because it changes their quality of life too much - so they make other modifications (or take medications) to control the factors that led to the problem in the first place. I don't think he would knowingly put his life at risk and leave his kids without a father.