Top Animals That Sleep The Most
Animals have unique sleep habits that reveal how they adapt to their environments and conserve energy. From koalas who sleep up to 22 hours a day to squirrels…
Why You Wake Up at 3 AM: Segmented Sleep Explained
Waking up at 3 AM may not be a problem, but a remnant of an ancient sleep pattern known as segmented, or biphasic, sleep. Historically, humans rested in two di…