Pre-shift yoga classes

I was thinking about how wonderful it would be to have a program at facilities where you show up for a yoga class prior to your shift. An instructor would be hired to teach a class at 0530 and 1730 at the hospital for nurses. This could be a great way to start your shift, ya know?

I am wondering if anybody has ever heard of a program such as this being implemented at nursing facilities anywhere.

Thanks in advance!