Life expectancy generally goes down these days either in war-torn places, or other extreme - people overeating on tons of junk food, and generally not compensat

Life expectancy generally goes down these days either in war-torn places, or other extreme - people overeating on tons of junk food, and generally not compensating their eating habits with adequate physical activity. We are very far from times when medicine and science can properly fix bodies destroyed by such a lifestyle. Russia & former soviet union countries are a bit special but within same category - their alcoholism contributes heavily to their lower life expectancy. To me it looks like a perfect storm - people living more stressful lives getting their impulses more from cell phone than real world out there, eating worse and more of it, exercising less. I don't believe most of this is directly related to wealth, although many would like to connect these. More like some mental fortitude and strength to keep up some sane regime of healthy eating & exercising (really, you just need running shoes in most of the world, cheap yearly gym pass can easily cover 100% of your needs).