Now, sushi is a staple in the Japanese diet and that can help people there live longer. 壽司是日本飲食中不可或缺的食物，還能幫助當地人延長壽命。
Now, sushi's main ingredients, fresh fish and dried seaweed, have positive health effects. 壽司主要材料中的鮮魚和海苔對健康都有良好的影響。
Dr. Sanjay Gupta explains. 來看桑杰‧古普塔醫生的說明。
There are some cities around the world that have extraordinarily high life expectancy rates 世界各地有某些城市的平均壽命特別高，
and health officials are trying to figure out exactly what is it about those places that is somehow different. 健康部門的官員們試圖找出究竟這些地方有什麼不同之處。
A good place to start looking is Japan. 日本是研究起頭的好地方。
One thing I can tell you right off the bat, it has less to do with genetics and a lot more to do with the environment, 我可以立刻告訴各位的是，這和基因比較沒有關係，而是和環境非常有關，
and specifically the types of food that they eat. 尤其是人們攝取的食物類型。
This is one of the most popular places you'll find in cities [countries] like Japan -- 像日本這樣的國家，你會發現這裡是非常普遍的場所之一——
you have octopus, over here, you have squid -- fresh fish markets. 你看到這裡有章魚，這邊還有花枝——這裡是鮮魚市場。
This is a place that a lot of people come [to] and they buy fish every single day and this is particularly fresh fish as well, as you can tell. 許多民眾每天會來這種地方買魚，你可以看得出來，這個魚非常新鮮。
Just looking around here, you can see how fresh this is. 環顧四周看看，你就能知道這個有多新鮮。
But there are some fish you really should pay attention to. 不過有些魚類真的值得你多加注意。
You have crabs over here, you have big clams, small clams, 這裡有螃蟹、各種大小的蛤蜊，
but there are certain fish, for example, that are really high in Omega-3 fatty acids. 但有某些魚類的 ω-3 脂肪酸含量相當高。
Mackerel over here; if you've ever had this, it's a great fish, very high in Omega-3 fatty acids. 這邊這個鯖魚，如果你吃過的話，這種魚很好，ω-3 脂肪酸很高。
Salmon is another one. 鮭魚也是另一種含量很高的魚類。
And if you look at the blood of Japanese people versus people in other parts of the world, 如果你檢視日本民眾的血液，拿來和世界上其他地區的人相比，
often those levels of Omega-3 fatty acids are twice as high. 通常會發現前者ω-3 脂肪酸的含量高達兩倍。
It's probably not surprising that heart disease, such a big killer in the United States, 也許不令人意外的是，在美國是重大致命殺手的心臟病，
you have rates that are about half of that here in Japan. 日本這裡的比率卻大約是美國的一半。
So, and this is a big reason why, specifically, Omega-3 fatty acids, terrific at lowering your blood pressure, 那麼，一大因素就是ω-3 脂肪酸，尤其對降低血壓、
decreasing the clots and the clogging in your arteries and lowering your triglyceride levels. 減少動脈堵塞與凝血、降低三酸甘油酯含量的效果都非常好。
Tuna, another great fish, for example, great pieces of tuna here, again, all of it very fresh. 例如鮪魚也是另一種很好的魚，這裡有些品質極佳的鮪魚片，同樣也都非常新鮮。
People come here every single day. 民眾每天都會到這兒來。
On average, people in Japan eat about one to two servings of this type of fish per day. 平均來說，日本民眾每天攝取一至兩份這類魚肉。
As compared to in the United States, for example, where they eat one to two servings per week. 比較起來，以美國為例，美國民眾每週才攝取一至兩份。
Just really quickly as well. 我們一樣很快地看一下。
Seaweed, you may be hard-pressed to find this at many stores in the United States, 海苔，你在美國許多商店可能都很難找到，
but that's another great source of antioxidants and it's also often eaten with fish. 但這是另一個抗氧化劑的絕佳來源，而且通常和魚肉一起食用。
Now, if you hate fish, there's there are other ways to get the antioxidants soybeans, 如果你不喜歡吃魚，還有其他方法能攝取抗氧化劑，
for example, tofu, flax seed, walnuts. Those are all great sources as well. 例如黃豆、豆腐、亞麻籽、核桃等等。這些也都是很好的來源。
But again, really trying to figure out why people live longer in big cities around the world, 不過，話說回來，真要找出世界各地人民較長壽的大城市，
a lot of it has to do with the type of diet they eat. 和他們吃的飲食有很大的關係。
And in Japan, where they do it better than anywhere else, 在日本，他們的壽命比其他地區更長，
fish -- specifically Omega-3 fatty acids -- make a difference. 魚類——尤其是其中的ω-3 脂肪酸——讓結果截然不同。
You know, there's something else they taught me here as well, 你知道嗎，這裡的人還教了我另一件事，
and it's this idea that you should push your plate away before you're ever full. 就是在你吃飽以前就該把盤子推開這種想法。
They call it hara hachi bu; it's a really good phrase. Never stuff yourself. 他們稱之為「腹八分」，這真的是個好諺語，提醒你不要吃到撐。
That's advice you can use no matter where you live anywhere in the world. 不論你居住在世界任何一個角落，這個建議都非常受用。