Hi, you're about to get smarter in just a few minutes with curiosity, daily from curiosity.com. I'm off today. You learn about why Dental cavities are so sensitive to cold an aunt that shrinks its brain to try to become a queen and whether swimming really does make you hungrier than other forms of exercise.
Dental cavities are agonizing if you had one, you know what I'm talking about? If you're one of the fortunate few with perfect teeth, you're just going to have to take my word for it. And the worst part of a cavity is the pain. You feel when you drink something cold and now scientists know why cavities are so cold sensitive Dental cavities happen when bacteria, eat away at the enamel coating of your teeth, this creates little pits in the enamel. They can feel like exposed nerve endings when you eat or drink, but the key words are feel like you might be surprised to learn that up until now scientists didn't really have a good explanation for this type of Sensitivity. I mean teeth have nerves but cavities are rarely deep enough to expose them.
New research from the Howard Hughes Medical Institute provides a solid explanation for this annoying phenomenon researchers found. Its specialized cells called odontoblasts contain a cold sensitive protein called t. R p c v s can be found in Denton. That's the tooth layer. That's right below the enamel. Also the name of a college town and bd1 a cab exposes even the tiniest bit of Denton, those cold sensing odontoblast proteins, change shape slightly. This sends a signal to nerves much deeper into the tooth which in turn gives your brain that unpleasant jolt of pain. This took a long time to discover because studying tooth structure is incredibly hard and mammal is the hardest material on the body and Denton's. No slouch either attempts to cut these materials, often ends up with the enamel shattering and the blood vessels and nerves being reduced to a useless pulp.
But this research team discovered all this without breaking a single tooth open. Instead, they bred special mice, that couldn't produce that cold. Sensitive odontoblast protein, they recorded brain activity in those mice. And in a group of normal mice, as they expose, their little teeth to the cold, they found that the mice without the protein, didn't react to the cold at all. Here's the neatest thing about the finding and actually add some scientific Credence to an old home remedy for toothaches. See clove oil has been used as a dental pain remedy for centuries. It contains a chemical that works by blocking that cold sensitive protein, which prevents it from sending that cold signal to a nerve, pretty cool. I'd say
Temperature, why is there? It's a double meaning, Cody, good and cold. Wow. Bone-chilling
When it comes to brains bigger-is-better, isn't it? Well at least we have a tendency to think so, but the Indian jumping, Aunt might be inclined to disagree scientists, just discovered that these ants can actually shrink their own brains and then to regrow them. Why would they do that? See Indian jumping ants are a special case. Among ants for one they're huge on average, they can be an inch long that's 2 and 1/2 cm and of course, they jump. It's in the name.
But that's not all that makes them unique in the ant world, most insects that live in colonies have strict caste systems, queens and workers are born into their jobs. And if you're born as a worker, the life of tunnel digging and carrying food along pheromone Trails for you, if you don't like that and tough luck. Well in me and jumping and societies are a lot like these other insect societies. But with one key difference, any worker and can become Queen on a spot, opens up for the top job, the workers can apply and all worker ants by the way, are female in the ants World. Males are basically just there for a reproduction.
The queen application process is rot and these ants have to put their minds into it. And I mean, that very literally, they have to shrink their brains because well, brains are expensive to maintain this, frees up, the energy to grow enormous ovaries that are five times their original size physical changes. Like, this are what scientists refer to as the phenotypic plasticity physical form in response to environmental factors when they have the Battle Royale begins, that's right. The ants would be shrunken brains, and swollen ovaries. Form a temporary social caste that called The Gamer Gibbs. I'm not making this up where each individual tries to Outlast the others in a sort of insect WrestleMania, although I'm envisioning.
This conflict among the game or games which is real can last as long as 40 days with as many as 10 and emerging Victorious, the winners get to spend the rest of their lives making babies and the ants that don't win. Well, they undergo another remarkable transformation, their ovaries, shrink their brains regrow and they just go back to their jobs. So to summarize workers who want to meet Queen have to shrink their brains grow, their ovaries and submit to a 40-day cage match with the possibility that they'll just go back to being workers again.
We've all heard you're not supposed to swim right after you eat, which is a myth by the way, swimming. After you eat totally fine. But have you ever wondered why you're hungry or after swimming? Then after running or biking Will turns out? There's a scientific reason and it could benefit swimmers in the long run, do it may see like swimming burns more calories than other exercises which would explain the increase in appetite. That's actually not the case. Swimming Burns about the same number of calories as running and biking do depending on the pace. But a 2005 study conducted, by the University of Florida, provided an important clue as to why you're ready to eat a horse. When you get out of the pool, people tend to eat more calories after exercising in cold water than in warm water in the study. Students who exercised in Coldwater, 8, 44% more calories. That means that it might come down to temperature.
Swimming in a pool, makes you colder than exercising in the open air and that may be to blame for your increase in appetite. This could be because feeling cold constrict, your blood vessels, which may prevent the release of hormones. That would normally make you less hungry at in July, in animal eats more, when preparing for winter, hibernation,
And it's not just casual swimmers, you get hungry, in fact Studies have shown that Collegiate swimmers have higher body, fat levels, and their Runner counterparts. It seems like that body fat give swimmers an advantage more body fat makes for smoother curves which provide less resistance in the water. That is also less dense than muscle, which gives it more buoyancy and helps keep swimmers bodies afloat.
But if we lost is your goal, don't be afraid to swim. Aquatic aerobics are particularly effective for those who are overweight and accustomed to sedentary lifestyle since they're easier on the joints and running. You could also take a brisk walk after you swim to raise your body temperature before grabbing a post workout snack. In any case, it's a good idea to have healthy food, with low, calorie counts and lots of protein on hand. Just please don't need a horse. I believe a recap is in order, so let's do it. Starting with the fact that Dental cavities are not extra sensitive to the cold because of exposed nerve endings deep enough to expose those instead of the pain comes from special cells called odontoblast live in a tooth layer. Just below the enamel of Denton and that's why clove oil can help soothe. The pain that has a chemical two blocks, your cold sensitive protein,
And also quick Public Service Announcement, reminder to see if dentist, especially if you haven't. Since before the pandemic, I have not seen my dentist since before the pandemic and then I moved. So now I don't leave me and my dentist and I need to find a new one and I'm way overdue for a cleaning and oral hygiene is extremely important and take care of yourself extra bad because I think I had an appointment that I had been scheduled for six months when the pandemic started and I like just didn't go. I was like too afraid and I didn't want to I was like nervous and I didn't go and I haven't called him back since I need to do that. Yeah it's one of those things that people keep putting off in my dentist really impressed upon me how important it is for me because I have diabetes so I imagine there could be complications you don't think it means you think of dentist is like I clean my mouth and that's it. You're not connected to everything else in your body. They get there and get in there. Can get in other parts of your body.
Important said take care of your mouth. Basically, I really don't know. I kind of enjoy it. I had a lot of cavities when I was a kid, so I learned to be afraid of it. But then the more visits you have where you don't have, like, dental surgery and feelings and stuff. The easier it is, to go, right zactly. We have to learn some wild facts about the Indian jumping in, it can literally shrink its brain to grow enormous ovaries to try to become the queen of the colony. These Queen applicants are literally called gamer Gates, I believe that word was invented before the capital G gamergate happened and they fight each other for as long as 40 days, for the honor of being able to spend the rest of their lives making babies.
Everything about that sentence. You just said his extraordinary, but they're not actually fighting to hurt each other. Ashley, you know what they're fighting for? What's that ethics in games journalism?
That's all I get is and we also learned that swimming really does make you hungrier than other forms of exercise burns more calories. The difference probably comes down to temperature since swimming in a pool, makes you colder than exercising and open their experience. Because a few years ago, I started getting more into swimming because I was trying to be a triathlete, that is something that I have left in the past. I did it. I did to trap on, I'm good. I'm all set. Thanks, but I did a lot of swimming and I did notice that I got really, really hungry afterward and it's kind of cool. But this is your body being like, Oh, yeah, I know. I'll just give you some more fat so that you can swim better. Like I think that's really cool. Like thanks, buddy.
It's not what I want but it's just, you know, I appreciate the help. I'm a little bit more of a pool noodle guy. So that's where I'm at. Today's Raiders where Cameron Duke and Ashley Hammer who's also our managing editor are producers tomorrow and we'll help you grow your brain, not drinking well, okay, I don't know that will actually alter the physical size of your brain, but still, you can at least join us again tomorrow to learn something. New is just a few minutes until then stay curious.