Psychology

Today You Should Know answers your curious questions about how the world works. Here's everything we've covered (so far) on the topic of psychology. Whether you're interested in why humans kiss each other or why dreams are hard to remember, there will definitely be something that satisfies your curiosity about how the world works.

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Why do we use metaphors?
Why do we use metaphors?

We use one unique metaphor for every 25 words spoken.

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Why do harmonies sound good?
Why do harmonies sound good?

Our brains crave balance, order, and symmetry.

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Why do I cry when I laugh hard?
Why do I cry when I laugh hard?

We don’t know for sure, but crying and laughing are both ways that your brain soothes you and reduces stress. Crying while laughing could also just be because your tear ducts are getting stimulated by your face muscles.

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Why do we have emotions?
Why do we have emotions?

They’re there to help you, I promise.

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Why do humans kiss each other?
Why do humans kiss each other?

Or as one researcher described it, “skin sucking behaviour.”

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Why are dreams so hard to remember?
Why are dreams so hard to remember?

Our brain is making it hard on purpose, so it can focus on other activities.

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Why do we get goosebumps?
Why do we get goosebumps?

Goosebumps would be a lot more useful if we still had fur.

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What is an itch and why do we get itchy?
What is an itch and why do we get itchy?

Get ready to scratch the itch of wanting to know why we itch.

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Why do we look away in conversation when we're trying to think?
Why do we look away in conversation when we're trying to think?

I can’t look at you right now. I’m trying to think.

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