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The Proof with Simon Hill cover image

Dr Andrew Huberman | Understanding your brain + optimising its function

The Proof with Simon Hill

NOTE

The Importance of Smell in Determining Safe Environments

Smell is one of the most primitive senses that determines safety in an environment./nThere are three categories of smells: yum, me, and yuck. Yuck smells are generally poisonous, dangerous, or infectious./nInhaling dangerous scents activates the brain immediately, leading to alertness./nSmelling salts leverage this system to make people feel alert./nAlertness caused by smelling salts activates muscles via adrenaline.

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