> “The Number To Stay Healthy” implies a threshold beyond which there is no benefit. To me it doesn't it implies a number which would give you a good average h

> “The Number To Stay Healthy” implies a threshold beyond which there is no benefit. To me it doesn't it implies a number which would give you a good average health condition, or maybe a threshold beyond which the marginal benefit will start to outweigh the marginal effort for an average person (hard to establish that, though). A "threshold beyond which there is no benefit" sounds like a way too high target.