Same conclusion - nothing more, sorry to say. You have done it all already - are/have been the example and provided the source information. Just roll along, getting lighter and fitter and plain healthier, and be there if one of them wakes up.
My pop has the same excuse for everything - "Ain't killed me yet!!" Yeah... Knee replacement, quadruple bypass, pacemaker, meds, mood and anger issues, cataract surgery, still smokes, SAD diet, full dentures, cannot walk far without tiring or pain. No, he ain't dead yet, but he took strong genes and turned them all off. In his prime he was in training to box heavyweight.
I have a mantra that I have spouted for years... "If I eat right, I feel right. If I feel right, I exercise right. If I exercise right, I think right. If I think right, I eat right..." Phil-SC