Exactly. I do it whether I have to wait for something or not. 1 minute break every 15 or 30 minutes to do a micro-meditation / try to bring back awareness of my body. Sometimes I do ignore it if I get really deep though. You might think that losing 4 minutes every hour is a lot, but much more is lost when the mind is too overworked. And the brain is working in the background anyway - and some ideas and solutions pop out of the void - but if you open email, Hacker News - that background thread is closed and a new background thread, unrelated to work opens when you work. Context switching is very unproductive and costs a lot of energy too.