This is a very interesting Swedish study, conducted over a more than 30 year period, which persuasively links adolescent obesity in young men with cardiovascular risk later.

The bottom line is that the possibility of early death in men from  heart problems, i.e. before 55 years of age, can be made more remote by controlling weight in the late school/early college years.

Unfortunately, that is precisely the age when they think they are immortal.

Body mass index in late adolescence and its association with coronary heart disease and stroke in middle age among Swedish men