Your fingernails and toenails can be surprising indicators of whats going on inside your body.

In this video, the folks at SciShow illustrate five things our nails can tell us about our health.

Nails are made of dead cells, but they grow from a root in your cuticle.

When this root grows new cells, it pushes the dead ones above it, forming your nail.

If you see anything abnormal, that usually means somethings going awry in your body.

And, as host Hank Green explains, you might figure out whats going on by working backward.

Unfortunately, like a lot of symptoms, nail abnormalities can really be anything.

So if you see something odd in your nail growth, you obviously dont want to assume the worst.

If youre worried or concerned, youll definitely want to see a doctor.

But Green breaks down some interesting info in the video above, and its worth checking out.

5 Things Your Nails Can Say About Your Health| SciShow