How Emotions Are Made: The Secret Life of the Brain

I felt sadness in that moment because, having been raised in a certain culture, I learned long ago that “sadness” is something that may occur when certain bodily feelings coincide with terrible loss.

you must show that no other explanations can account for your results.

Faces are constantly moving, and your brain relies on many different factors at once—body posture, voice, the overall situation, your lifetime of experience—to figure out which movements are meaningful and what they mean.14