I do believe the Japanese are leading the world to-day in physical fitness in the work place and maybe it is something we should all look at.
Doug,
Not only do they lead the world in physical fitness.... but their DIET has a lot to do with the fact that there are far fewer overweight Japanese than there are overweight Americans. I travel to and spend time in Japan off and on.... and I have some observations on this subject.
First of all....... it is FAR easier to eat healthy there than it is here in the USA. Their core concepts of food starts off that way. They also do not tend to routinely "overeat". Portions are smaller. But the QUALITY of the food there is far, FAR higher. But then so is the COST of eating.
Also eating is frequently taken to a "high art". Even obsession. But that obsession is not about quantity.... but the quality. (You won't hear "Can I supersize that toro sushi for you, sir?

) Food is to be savored...... and the presentation of the food is as important as the food itself (a potter's paradise ;) ).
Of particular note is that you can eat really GOOD "fast food" over there that is VERY low fat. And really tasty stuff. And it is available pretty much EVERYWHERE...... even in the equivalnet of a Seven Eleven (or actually IN a Seven Eleven...... they have plenty of them ;) ).
You can get very passable packaged sushi and other o-bento type food even in convenience stores. They have very strict timing laws (to the hour) on anything containing raw fish,... and it is ALWAYS fresh. none of the "week old" sandwiches we tend to see in such places here. They take such isses VERY seriously....and they don't tend to make mistakes on it.
Traditional Japanese "junk food" snacks do not run to processed high fat / high sugar/ high carb products like Twinkies and Doritos. Their junk food of choice is stuff like dried and salted scallops, fried squid, and so on. High in sodium....... but way lower in fat and calories. (But unfortunately.... through availibility, they are learning to like stuff like Twinkies.)
The urban Japanese are probably worse than Americans for being busy and eating on the run. But what they CHOSE to eat makes all the difference in the world. A fast bowl of soba (buckwheat noodles) with a couple of pickled veggies and a small piece of fish or tofu or meat makes a great fast lunch. Noodle stands, yakitori stands (broiled chicken parts), and so on are everywhere.
I can and do eat like a pig when I am over there........ the food is FANTASTIC........ and I tend to lose weight. It is not a low carb diet...... rice is everywhere. Extermely low fat content (except from the Omegas from fish) is the key.
All this happens is in spite of the national sport..... drinking ;). The Japanese seem to LOVE their sake and beer. It is not a society for a strict teatotler to be very comfortable in. Heavy drinking is more the norm....not the exception. But even with all these extra booze carbs........ they tend to stay skinny on the whole.
Recently spending two months living there this past summer...... and looking back to being there in 1996 and again in 2002........ I have noticed a disturbing trend. It is very noticable that I am seeing more and more obese Japanese as time goes by. I understand their incidence of heart disease (which was VERY low a decade ago) is now significantly on the rise too.
I am also seeing a geometric increase in the popping up of McDonalds, Kentucky Fried Chicken, Mr. Donut, Dunkin Donuts, and Starbucks. Is there a correlation? I personally think so.
In general the Japanese are chasing after "all things US". Personally I think it is threatening them losing a lot of their native culture. They FLOCK to these "American" food places. BTW... this is what they think of when they think "American Food".
best,
...................john
PS: Now I do have to say here that I don't want to have my body's murcury level checked ;) .