A good night's sleep begins with healthy gut bacteria. Here's how to look after yours

MedicalXpress | 六月 07, 2026

It's no accident that we spend a third of our lives asleep. It is essential to our health, and even animals for whom resting is complicated—such as aquatic mammals that need to surface to breathe, or birds that go up to 10 days without touching dry land—manage to sleep with surprising adaptations.