How wakeful rest may boost brain power in a manner similar to sleep
For most of my adult life, I have noticed something odd. Some evenings, I can barely remember what I did that day. Ask me what I had for breakfast and you will be met with a blank look. On other days, I can tell you the details of interviews I did, the plans I made, which snacks I packed my daughter for school and how much of each she ate.
The difference between them doesn’t seem to correlate to how I slept. In fact, only one factor seemed to matter: how much I rested. I have long thought that, on days when I am rushing around, I am just more stressed, which may affect memory formation.
But there could be another reason: the role of rest itself.
We all know that a lack of restorative sleep impairs our cognitive abilities. When we are sleep-deprived, we can struggle to recall what we have learned, absorb new information and sustain focus. We may also be aware that resting while awake seems to partially restore our sleep-deprived minds.
Now, neuroscientist Giulio Tononi and his collaborators at the University of Wisconsin-Madison are revealing how certain housekeeping and cognitive tasks that happen during sleep can also occur, to some extent, while we are awake.
This is “the last piece of the puzzle” that may answer why wakeful rest helps to fulfil some of the functions of sleep, says neuroscientist Thomas Andrillon at the Paris Brain Institute.
Local sleep
For decades, sleep was understood to be a global state that affects the whole brain at once. In deep sleep, the brain reverberates with slow brainwaves – in which neurons slowly cycle in sync between firing and silence – and mostly disconnects from the surrounding environment
Suggested protocol: Wakeful rest
ΑπάντησηΔιαγραφή1. After learning something new or performing a cognitively demanding task, take a break.
2. Rest quietly for at least 10 minutes, ideally sitting comfortably with your eyes closed.
3. Minimize sensory stimulation: no phone, reading, TV, conversations, or other information-intensive activities.
4. Allow your mind to wander naturally. Don't actively try to solve problems, meditate, or rehearse what you just learned.
5. Repeat between demanding tasks, particularly when you want to retain newly learned information.
6. Avoid packing your day with continuous mental activity. Leave room for unstructured downtime.
7. Maintain adequate nighttime sleep. Wakeful rest supplements sleep; it does not replace it.
Alternative: Low-stimulation activities such as folding laundry or knitting may help, although the evidence is less established.
Duration: The article supports at least 10 minutes after learning. It does not establish an optimal daily frequency or total duration.