Our eyes close automatically to protect us from perceived dangers.

Our eyes close automatically to protect us from perceived dangers

More from the Human Body Facts niche...

Human Body Facts

Even the tiniest of noises automatically makes your pupils change focus

Human Body Facts

Eye transplants are currently impossible due to the sensitivity of the

Human Body Facts

You know from watching crime dramas that everyone has their own

Human Body Facts

Each individual eye contains 107 million cells and all are light

Human Body Facts

While it takes some time for most parts of your body to warm up to their

Human Body Facts

The human eye only sees three colours: red, blue and green. All other