1. Whenever you feel something that’s burning hot — this is detected by this particular ion channel. It’s sensitive to heat. And it fires off a signal that goes up your nerve cells. And it’s exactly the same ion channels that are stimulated by chili peppers. So the reason that chili peppers taste so hot is that they stimulate the same ion channel and the brain interprets them both as the same thing.

    Frances Ashcroft on why chili peppers taste so hot

  2. heat

    physiology

    chili peppers

    spicy

  1. Climate scientist Heidi Cullen on extreme heat: "That’s always been sort of the sinister aspect of heat, which is from a television standpoint, what kind of imagery do  you show to really make people understand that this is an incredibly  deadly situation. It’s a really tough kind  of thing to convey with visual images. So you just, you see images like  water fountains spraying water and people at the beach, but those are  not necessarily the things that our brain thinks of as dangerous. But it  really, really is.”

    Climate scientist Heidi Cullen on extreme heat: "That’s always been sort of the sinister aspect of heat, which is from a television standpoint, what kind of imagery do you show to really make people understand that this is an incredibly deadly situation. It’s a really tough kind of thing to convey with visual images. So you just, you see images like water fountains spraying water and people at the beach, but those are not necessarily the things that our brain thinks of as dangerous. But it really, really is.”

  2. weather

    heidi cullen

    heat