Myth: You have a lizard in your head - Deepstash
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Myth: You have a lizard in your head

Myth: You have a lizard in your head

You may have heard that your passions lie deep in ancient parts of your brain that you apparently inherited from prehistoric reptiles. Or that your "rational brain" which sits on top of your "lizard brain" tries to moderate your desires.

The only animal with a lizard brain is a lizard. Neuroscience clearly shows that brains don't evolve in layers but follow a single manufacturing plan.

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2.15K reads

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Myth: Your brain stores memories

Your brain doesn't store memories like a filing system. Your brain reconstructs your memories on demand with electricity and chemicals.

"Remembering" is really "assembling" and may be influenced by your current situation, so your brain may reshape each occurrence so that i...

167

863 reads

Myth: Mirror neurons are special cells that create empathy

Decades ago, scientists noticed neurons increase their activity when an individual is taking a particular action, for example, waving when others are waving. They named them "mirror neurons."

But, your brain is really predicting your next action based on what you see, hear, and feel if you...

147

714 reads

A half-myth: You can't grow new brain cells

Most parts of the human brain can't grow new brain cells, but some parts can.

The hippocampus can grow new neurons. The hippocampus is important for learning, remembering, regulating your eating, and other biological functions.

160

937 reads

Myth: Your brain reacts to events

During any day, it can seem like your brain is reacting to events around you. You're pricked by a needle and feel a bit of pain.

However, your brain constantly predicts the next moment and compares the guess to the data it receives from the world and inside your body. These predictions tur...

150

880 reads

Myth: The left side of your brain is logical, the right is creative

Generally, no part of your brain is exclusively dedicated to creativity or mathematical reasoning. Neurons compute every action you take from across the entire brain.

While your cerebral cortex consists of two halves, both are intricately connected. Language ability does t...

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1.17K reads

Myth: Cortisol is a stress hormone, serotonin a happiness hormone

Hormones don't just have one specific psychological purpose, and all the chemicals work together in your mind.

  • Cortisol boosts the amount of glucose in your bloodstream for a quick burst of energy, such as before you exercise or wake up in the morning, not just when ...

166

1K reads

Myth: Your eyes see, your ears hear, and your skin feels

All of your sensations are computed in your brain.

  • You see with your brain, based on what is in your brain and the sense data from your eyes.
  • You hear with your brain as it makes sense of sounds based partly on the data from your ears.
  • ...

165

930 reads

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