Global News Podcast
Trump implements threatened tariffs
Valerie Sanderson
We're at Davis. And finally... Why does scratching an itch feel just so very good? Well, we're always told that scratching a bite or a rash can be bad. But a study published in the journal Science has found that the reason it feels good is that it has a benefit. Why? Julian Marshall asked skin immunologist Dan Kaplan, who led the study.
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