If humans were cold-blooded, we’d rely on the environment to control our body temperature, just like reptiles do! On chilly days, we’d need to bask in the sun to warm up and be active, but on super-hot days, we’d have to find shade or cool off in water to avoid overheating. Our energy needs would drop because cold-blooded creatures don’t burn calories to stay warm, so maybe fewer snacks—but way more naps! Life would be slower and more tied to the weather, and extreme climates might be tough for survival. Fancy heated houses or cooling systems might not matter much anymore; we’d just adapt to our surroundings. On the bright side, no more sweating or shivering—just soaking up the vibes of the weather! #brightside Animation is created by Bright Side. ---------------------------------------------------------------------------------------- Music from TheSoul Sound: https://thesoul-sound.com/ Listen to Bright Side on: Spotify - https://open.spotify.com/show/0hUkPxD34jRLrMrJux4VxV Apple Podcast - https://podcasts.apple.com/podcast/idhttps-podcasts-apple-com-podcast-bright-side/id1554898078 ---------------------------------------------------------------------------------------- Our Social Media: Facebook - https://www.facebook.com/brightside/ Instagram - https://www.instagram.com/brightside.official/ Tik Tok - https://www.tiktok.com/@brightside.official?lang=en Snapchat - https://www.snapchat.com/p/c6a1e38a-bff1-4a40-9731-2c8234ccb19f/1866144599336960 Stock materials (photos, footages and other): https://www.depositphotos.com https://www.shutterstock.com https://www.eastnews.ru ---------------------------------------------------------------------------------------- For more videos and articles visit: http://www.brightside.me
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00:00If people had feathers, wolverine claws, long beaks, sharp teeth, and other features of animals,
00:06it wouldn't change our lives globally. We would pay more for manicure services, or wouldn't need knives,
00:12using our sharp claws instead. The culture of food consumption would change if we had long beaks.
00:19Feather care would create new branches in the field of fashion and self-care.
00:23All these things help animals survive in the wild, but they would be pointless for us.
00:28But what would change our lives completely would be a drop in our blood temperature.
00:33The circulation of cold fluids in our bodies would change our lifestyle and open up opportunities for physiological changes.
00:41The coolest thing is that the number of bacteria in our organisms would decrease significantly.
00:46Our warm bodies maintain the ideal temperature for both good and bad bacteria.
00:52But if we become cold, most microbes won't survive.
00:56They won't be able to reproduce, and we will go to the doctor less often. But there's a downside.
01:04Those rare microbes that can adapt to low temperatures would cause serious health problems.
01:09The fact is that cold blood can slow down your immune system.
01:14Protective cells will fight less effectively against unwelcome little guests.
01:19Another problem with cold-blooded people, they would depend on external conditions.
01:24We warm-blooded creatures can't live at extreme temperatures either,
01:28but our organisms can react to any changes and regulate the state of the body.
01:33For example, when we're hot, we sweat and thus cool ourselves.
01:37When we feel cold, our muscles tense up.
01:40We start shaking, and the blood circulates faster in the vessels to warm us up.
01:45These features help to adapt to the cold and heat.
01:48But if we were cold-blooded, we'd lose the possibility of this regulation.
01:52We would be too sensitive to any temperature changes.
01:56Imagine all those reptiles living in home terrariums. Their owners buy expensive lamps to heat their homes.
02:02Our houses would look the same.
02:08With cold blood inside, we wouldn't become more resistant to the cold. We would become more dependent on warm conditions.
02:15We would waste a huge amount of energy on additional heaters and gas stoves.
02:20And during cold weather, we would spend all our money on heat.
02:24But our financial situation would remain the same because we would spend less money on food.
02:30Warm-blooded creatures use a lot of energy to maintain the high temperatures of their bodies, and they take this energy from food.
02:37Therefore, cold-blooded people would eat much less, and they would also have a slow metabolism.
02:43A hearty breakfast in the morning would be enough to function normally all day.
02:48However, not everyone can spend a lot of money on electricity.
02:51In cold regions, people would have to keep heaters on almost all year round.
02:56It would be much cheaper to move closer to the equator and not waste money on electricity at all.
03:02Almost all cold-blooded people would strive to live there. The northern parts of the planet would get empty,
03:08but in the southern regions, overpopulation would begin.
03:13A considerable number of people wouldn't be able to live comfortably on such small territories.
03:19The construction of hundreds of thousands of buildings, millions of cars with exhaust gases, factories, and plants on the equator
03:26would significantly worsen the environmental situation.
03:30More population density would lead to disaster.
03:33But fortunately, the coldness of our bodies would help us with this problem.
03:38You know that bears hibernate.
03:40These warm-blooded animals put on a lot of fat and then go to their den to sleep through the winter.
03:45And at this time, their body feeds on the accumulated fat.
03:50However, cold-blooded creatures are also capable of this.
03:53And unlike bears, they don't need to stock up on extra calories as they have much lower energy needs.
04:00Turtles and frogs can burrow into the silt under lakes and ponds and spend up to 6 months there.
04:06The liquid inside their bodies freezes, but the cells remain alive.
04:11This allows them to go through difficult times easily.
04:14So, this ability would ideally help people reduce the load on the planet.
04:19Going to the equator is unnecessary if you can spend 6 months of winter in your bed.
04:24And people living on the equator could take turns doing it.
04:28Have you slept for 6 months? Great, now it's my turn.
04:32Of course, this would significantly change the planet's economy.
04:36Production capacity would drop.
04:38There would be fewer goods and services in the world.
04:41There would be fewer taxis in cities and fewer restaurants.
04:45But it would reduce the harm caused to the environment.
04:48Imagine how easy it would be to wait for the release of some movie or video game.
04:53And what would happen to our dreams?
04:56Flying in the clouds for 6 months or speaking with a group of mutant seagulls on another planet would be cool.
05:03Lucid dreaming training centers would be opening all over the world so that you could have fun during hibernation.
05:10But not all people would agree to such conditions.
05:13Imagine training hard, keeping a strict diet, and then just losing 6 months of your life.
05:19All your progress would disappear, and you'd have to start from the beginning.
05:23Interestingly, there would be fewer athletes in such a world.
05:29Another superpower of cold-blooded people would be the ability to live underwater.
05:34Dolphins, whales, seals, and other mammals live in seas and oceans.
05:39But for some reason, evolution hasn't given them gills.
05:43They can't extract oxygen from the water like fish, so they have to swim to the surface many times per day.
05:49The reason for this is their warm-bloodedness.
05:52Cold-blooded fish don't need a lot of oxygen.
05:55They extract a small part of it from the water with the help of gills, and it's enough for them.
06:00But this wouldn't be enough for warm-blooded creatures.
06:04If dolphins had gills, they would be huge since dolphins need 15 times more oxygen per pound of their mass than cold-blooded fish.
06:13Gills need to constantly move large amounts of water to extract oxygen.
06:17Sharks must always be in motion to get the necessary supply.
06:21If humans had gills, they would be gigantic, and we would have to swim very fast to get enough oxygen.
06:28But everything would be much easier if people were cold-blooded.
06:32Perhaps if we started living in the water, then evolution would give us gills in a couple of thousand years.
06:40We would have a better chance of regenerating with a low body temperature.
06:44Cold-blooded starfish, lizards, and salamanders can grow limbs and organs and even completely restore their entire body systems.
06:52With such a superpower, we would be able to defeat aging, save millions on doctor's visits, and avoid surgeries.
07:00But would we be able to fly if cold blood flowed in our veins?
07:05Unfortunately, we wouldn't be able to grow wings.
07:08A bird is a warm-blooded creature with a fast metabolism.
07:12It needs a lot of oxygen and energy to fly.
07:15If people in some parallel universe could fly, their bones would be much lighter and more fragile, and their muscles would be more developed.
07:24Even with these anatomical changes, they wouldn't be able to fly freely like pigeons or sparrows.
07:30Flying people would be clumsy and barely maneuverable in the air.
07:34They would need to learn how to absorb more oxygen in flight.
07:38Otherwise, they would fly with oxygen tanks.
07:41Or probably evolution would make their lungs much bigger.
07:46Despite many pros, cold blood is still a disadvantage.
07:50Perhaps our brain wouldn't be as developed since it would need less energy.
07:54So it's good that our blood is warm.
07:57We don't have gills, but we cross oceans on ships.
08:00We don't regenerate fast, but we have advanced medicine.
08:04We have a fast metabolism, and there's a lot of delicious food in the supermarket.
08:09We now have the ideal body structure for a comfortable existence in this world.
08:14But how would our life change if our body temperature rose two times?
08:18Well, that's a story for another video.
08:21Hey, watch this space!
08:25That's it for today.
08:26So, hey, if you pacified your curiosity, then give the video a like and share it with your friends.
08:31Or if you want more, just click on these videos and stay on the Bright Side!