Have you ever gotten “brain freeze” from eating something cold on a hot day? That feeling has a scientific term: “sphenopalatine ganglion neuralgia.” But the brain itself can’t actually feel pain, and cold ice cream doesn’t seem like it should cause pain anyway. So why is that so?
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你曾否在熱天吃冷的東西時，大腦感覺被凍結了一樣？這種感覺在科學上名為“蝶腭神經節神經痛”。實際上，大腦本身沒有疼的感覺，而吃雪糕等冷的東西似乎也不應會引起庝痛。那為什麼會這樣呢？
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