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Hey there, it's Sanjay. You know, I've been thinking a lot about pain recently. Like love and

joy, pain is an integral part of the human experience.

At the beginning of this season, I talked with science writer and author Ed Yong

about pain being considered one of our senses.

And like any other sense, it's subjective.

It is more of an experience than a sensation.

The pain that you feel. That's what happens when

your brain processes the information from a type of neuron called a nosusceptor. A nosusceptor

detects potentially damaging sensations. Think a hand, touching a hot stove or a foot, stepping on a tack.

But it's a lot more than that. As a neurosurgeon,

I deal with pain a lot in my line of work. We often ask patients to rate their pain on a scale of

...