A full reboot of a computer driven device involves removing or detaching the battery for a complete shutdown, not something we really want to attempt on ourselves. While there are scientific studies exploring the possibilities of rebooting human cells and even organs, quieting the mind and the body serves to provide the necessary "time out" to refresh and restore performance and quality of life for humans. It's interesting that while we can usually easily recognize the need for a device to reboot, we seem to frequently ignore our own need to do so.
When I was a kid, I rebooted all the time. I'd lie on the ground watching the clouds go by, or sit in the branches of a tree listening to the sounds of the forest, or watch the fish in my dad's tank endlessly swim. Maybe this natural ability to effortlessly reboot is one of the reasons children are so resilient. As adults, we seem inclined to override our need to take a time out and instead muscle through to where we think is an appropriate stopping point, or sometimes even until we break down.
There are lots of ways to refresh and restore ourselves, many of them taking as little time as a phone reboot. Close your eyes and with complete focus slowly count your breath in, then out. Notice the pause between breaths and do it again two more times. Or stop for a few minutes and direct your full attention to nature: a bird in flight, the intricate whorls of a pineapple, the bark of a tree. If you are indoors, try pressing your feet into the floor while you push your hands against a wall, noticing the support you receive and the flow of energy through your body. Restorative yoga, floating in warm water, meditation, a walk in the woods or at the beach take a little longer but you may find that the clarity of thought and sense of well being is well worth the investment of time. As author Anne Lamott recently wrote, "Almost everything will work again if you unplug it for a few minutes. Even You."