Yes, it can offer the wrong kind of support. If your pillow doesn’t give you the right kind of support, you might wake up with a tension headache. A pillow that doesn’t keep your head and neck aligned with your spine can cause neck pain and headaches.

Fact

The thickest skin on your body is found in the feet while the thinnest is in the eyelids.

Myth

Opossums sleep hanging by their tails.

You’ve probably seen cartoons—maybe even photos—of opossums lounging upside-down from their tails. While opossum tails are strong enough to grasp branches and even hold the animals’ weight for a short period, adults are too heavy for their tails to support them for long, so they can’t stay like that while sleeping.