The constant focus on saving time and increasing personal productivity is a recipe for mental illness, in my opinion. Most people would do well to slow down, tune out, and make themselves a decent meal. I suspect that some and perhaps many of the people obsessed with personal productivity and life hacking will at some point suffer from a stress or anxiety disorder and will realize that life is short and there's no point in trying to hurry through it.
This trend towards saving time by sacrificing basic requirements like eating and sleeping is increasingly absurd. In a year or two, I'll open Hacker News and there'll be an article in the top ten that describes how you, too, can Avoid Wasting Time Due To Lengthy Bowel Movements. Don't believe the hype. Have a good night's rest, followed by a leisurely shit and a tasty, gruel-free breakfast you made yourself, and you'll be a better person for it.