Why does hot sauce make your eyes red?

Hot sauce doesn't actually make your eyes red. It's the capsaicin in hot peppers that causes the burning sensation and the feeling of tears.

Here's how it works:

* Capsaicin is an irritant that binds to TRPV1 receptors in your mouth, eyes, and skin.

* These receptors are responsible for detecting heat and pain.

* When capsaicin binds to these receptors, your body perceives it as a burn.

* This triggers your body's fight-or-flight response, which includes:

* Increased blood flow to the affected areas (causing redness and swelling).

* Release of tears to wash away the irritant.

* Increased mucus production in your nose and throat.

* Increased heart rate and breathing.

So, while it feels like your eyes are actually red, it's actually the increased blood flow to the area that makes them appear red.