Do you need sunlight in your eyes to sleep better?

This is where the “sunlight in the eyes” advice gets misunderstood.

Light needs to enter the eyes to set the body clock, so sunglasses reduce the benefit, right?

Yes and no.

Here’s why that matters.

1. Is “sunlight in the eyes” actually good for you?

Your body has a clock inside it.

This clock helps tell you when to feel awake, when to feel sleepy, when to eat, and when many hormones should rise or fall. Light and dark are t…