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valianteffort | 5 months ago

I suspect two things, low-calorie diets consisting predominantly of fresh foods and vegetables. And active lifestyle.

It is unreal how much a good diet and walking everyday will change your entire life.

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numpad0|5 months ago

The actual traditional Japanese food consists of obscene amount of carbohydrates taken with pickles flavored salt with little to no protein or fat intakes. The role of carbs and proteins is switched from a stereotypical European dinner, a meal is about how to deal with the grains. This naturally shortens body heights and take diabetics out of family lines. This had changed massively owing to Westernization of diet and had reduced stroke(brain and heart) deaths even as recent as last ~30 years.

This is apparently weird even to Chinese people; an image of ramen with rice and roast dumplings on sides amounts to a ragebait to them(as well as to experts in cardiovascular systems), while it's nothing more than a common lunch menu to students and young workers in Japan.

But I digress - my point is, the real traditional Japanese meal is more like half a football worth of rice with vegetable flavored salt, quite unlike idealized modern interpretations thereof.

decimalenough|5 months ago

Otherwise correct, but the real real traditional Japanese diet was barley (mugi), millet (kibi/hie) and sorghum (awa), not just white rice, which was an unaffordable luxury for many peasants.

panny|5 months ago

That's pretty close. If I had to sum it up in one word, it would be: trains.

Car culture makes Americans fat and lazy. 40% of US adults are obese. 80% are overweight.

Walking and good food, yeah, that helps. But trains introduce short sprints into everyday life. It starts with "He's too late, he's never gonna catch it... well I'll be damned, he did it." and pretty soon, you're saying "We can catch it, just run!" Everyone on the train has a shopping bag, because trains don't have huge trunks like a car. You want groceries? Carry it. Good exercise. Trains also remove the road rage from your life, the daily stress of defensive driving in a fast moving freeway full of other angry drivers. Trains eliminate the premature death caused by road accidents which not only lower life expectancy directly, but indirectly as bread winners are taken from families. The car exhaust is gone too. Trains reshape how towns are built, with higher density and less parking. More walking! Everything mushrooms out from the decision to travel with trains. It's little wonder why Japan has the lowest obesity rate in the world.

NalNezumi|5 months ago

I don't disagree, but to add I think the retirement culture probably helps a lot for longevity too.

The Japanese retirement attitude is "I've worked my ass off all my life. Contributing to the society all my life. Finally I have some time to spend on my hobbies! I should be active!" and they pick up quite active hobbies: if you go hiking mountains you'll see many old retired people with serious gears. Also still trains.

Contrast it to ime, western retirement which is more "finally I can relax" and people become sedentary. Hanging around in parks, cafe, or focus more on socializing and diet. And starts to rely more on cars and other senior services.

johndhi|5 months ago

By this logic wouldn't people in nyc, London, Washington dc, and Paris be living extra long?

supportengineer|5 months ago

I recently had an experience where I needed to do physical labor about 16 hours a day for two weeks, at the same time there was hardly any time to eat so I had to eat very small and simple meals. At the end of the two weeks I felt amazing.

Lwerewolf|5 months ago

Be careful with that feeling and don't underfuel, or at least keep it at "sane" levels. I feel pretty amazing and full after 62km/2700mD+ XCMs as well, as an extreme example... which is at least partially due to the immune system (and resp. inflammation/etc) being suppressed. Long, light/moderate efforts without adequate food intake and rest can lead to the same thing.

JJMcJ|5 months ago

Did a major house cleaning a few years ago, got me out of the chair and the couch for a couple of weeks. Probably not as intense as your experience but I definitely felt better and was more flexible for about a month afterwards.

xhkkffbf|5 months ago

I think this works well for relatively short bursts, but if you made it a regular habit your body would start to break down after a year or two.

majkinetor|5 months ago

Japanese food is not actually so great, especially nowadays - lots of carbs for one. Good Japanese food is not so different from Mediatorial.

fragmede|5 months ago

I'm no food historian/scientist, but I'm pretty sure the Japanese have been eating rice, which is a carb, even longer than has been a Japan.