
Is it too late to boost our immune system?
The Bridge to China
00:00
What's That All About?
Jason: I used to get in trouble sometimes, for example, like in the grocery store. When you're between the ages of 5 and 25, a lot of young people will just sit anywhere. They'll sit outside on the sidewalk. And what's that all about here? I do it. Jason: But in China, there's so many more people, four times some population, four times the germs.
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