4 ms·
If it were simply physical exhaustion, you'd expect to see some sleeping during the day, or be able to induce exhaustion.
by jldugger 9y ago
If it were simply physical exhaustion, you'd expect to see some sleeping during the day, or be able to induce exhaustion.
- yourkin 9y agoInduced exhaustion is one way to test it, yes. Can't say from the article if they ruled it out. Correlation of the rest pattern with a day-night cycle does not necessarily imply that the "sleep-like" state is indeed sleep, and not just a power-down low-metabolical wait-state used for the bio-chemistry to catch up after a day of activity is over.