Why Do Onions Make Us Cry?

Source: Medical News Today

You know that familiar feeling: tingly, stinging eyes, followed by tears. Why would the humble onion, a key ingredient in your next culinary creation, cause you such discomfort?

For plants and animals alike, life is all about survival and reproduction. Onions are no exception. To stop greedy predators from eating the bulbs, onions release volatile chemicals that cause our eyes to well up.

Read the full article in Medical News Today here.

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