> we need to be using them from sun-up to sun-down every day. That is not clear at all. Using them more, yes. Avoiding repetitive actions (or mitigating the

> we need to be using them from sun-up to sun-down every day. That is not clear at all. Using them more, yes. Avoiding repetitive actions (or mitigating them) yes. I'd like to see any evidence that has been gathered for sun-up to sun-down being necessary; I'd assume overuse is also a problem.