N The first few weeks of spring50 degrees Fahrenheit (10 degree Celsius) Day jacket or no Short jackets or sleeves by person. But in the fall, the weather could be the same as the parka.
Not only in your mind. The relative warmth of spring is physiological and psychological; after Long, winter bitesYour body has changed as much as 50 degrees f.
“I live with my work regularly,” says Cara Ocobock, on anthropologist Notre Dame at the University, which examines how the human body is adapting to the cold. His work often takes to Finland, where he examines reindeer populations in a cold extreme that spends a lot of time.
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“The human body adapts to different non-durable environmental situations, and the changes that your body lives during that time are not lasting,” he explains. Some of these changes involve a heating body found in adults.
American scientific He talked to Ocobock to learn more about changes in our bodies that are made during the winter, with this strange and new organ, and how do these changes cause cold winter when it comes to heating spring.
Do you live personally “50 degrees” that phenomenon?
Yes, I have the story of the last trip to Finland. I was 300 kilometers (185 km) in the north of the Arctic Circle, which had to be the coldest time of the year. Perhaps four or five days earlier they were not more than -20 degrees Fahrenheit (-29 degrees Celsius). But then five days later, it was consent Fahrenheit (or five and 10 degrees C), which should not exist for years sessions. After these days after these days, I began to sweat (when he went) over freezing. I wouldn’t wear a coat. My body is a kind of reverse course, “we need to cool you; this is not accustomed.”
How fast do these physiological changes occur when someone suffers from extreme temperatures?
There is always an individual and popular variation, but we see that changes start to occur quite quickly. It can start within 24 hours, but they don’t have about seven to 10 days. You will keep these changes after changing the environments and then you lose your acclimatation. This can also be hot, cold, moisture, dryness or high height. For example, I (I returned to sea level) in the field work in the rocky mountains, without breathing I could make two lengths of an Olympic pool. In two weeks, it was gone.
How commit Are our bodies exposed to cold weather?
There is a constant balance of various different systems that take place here. A quick change is an increase in your metabolic rest rate. To survive the number of basic calories in your body burning. Your body is increasing the thermostat to produce more heat, because you are losing more heat.
We also see changes in your blood vessels (squeeze or spread) to answer the cold. In cold (ships limit) how much blood is poured and reduces the heat that is lost with the potential loss of the environment. When you are cold, the blood will be made further from the blood vessels that are further away from the surface, in a hot climate, the opposite happens.
We also see and increase the brown activity of adipose adipos, is an active area of research. “Low fat”, as we call it, it is a type of fat that burns only to keep warm from acutely cold exposure. It is located in adult humans (above your clavixes), as well as in your deep deep blood vessels. This organ, and we think we are his own organ, uses energy to produce energy soak-not energy (activate your muscles) to run a mile or something like that. We thought that human adults have never had fat brown. We knew they have babies (in the first months of life), but once we thought it was smoked, that was it. But we see everywhere we look at adult human populations.
How different is fat brown from regular fat?
The brown tissue is very rich in mitochondrian. Instead of being the power of the cell, these mitochondria are ovens. It is basically a typical short circuit process, this fabric than energy energy.
In adults, so far, we have seen fat brown populations Russian and Other-Clima climate which makes sense. We’ve seen it in Albany, a ny-warm climate but cold winters. And we did it too He saw him in Samoan-Wirth tropical climate. So we have begun to think that brown tissue can be very ancient fabrics and it could be around our evolutionary history for a very long time.
How does brown fat activities change in cold seasons?
A study of seasonal changes in brown tissue brown (Alexandra Niclou made the first former student). He looked at the seasonal variation between the people of Albany in a brown adipose. He saw people who were able to maintain higher body temperatures from brown fat in winter, but at a low-calorie cost. And so the brown fat was really more effective, the greater the winter body temperature. It seems that the physiological side seems that brown fat responds among the seasons. I will return to Finland this spring (to measure more) between reindeer and internal staff.
Considering all these factors, what do you think that the first “warm” spring is happening to our bodies?
In winter, you will have an increase in resting metabolism. You may see the increase in brown activity in your tissue adipose. Suddenly, 50 degrees Fahrenheit is still a higher metabolic rate, and your brown fat may be more active), which means that your body is producing more heat than usually. That’s probably why you feel warmer and start sweating. The aclimatization process will last a week or more to get used to this new heat temperature setting.
There is also an aspect of the development of this, in fact, it is likely that your body responds to different extremes and how it responds to seasonal temperatures. I am a college teacher (Indiana), during the east coast and the east coast (who carries it) T-shirts and sandals, like 50 degrees and (who is) puff in Jaka. It always cracks me. And maybe we were going on with a brown tissue, though cold during critical development, the greater your child can be more active and sensitive to brown children.
Do you still affect these seasonal changes if you spend most winter houses?
They are certainly affected. It may not, of course, and that is, we are joining our work in Finland with a reindeer shepherds, more time in cold and internal office staff. But because you are going out, you still remain cold cold (even hours and hours at the end.
Why is it important to understand how our bodies affect extreme temperatures?
Understanding the organizers respond quickly (temperature changes) will be even more important in the face of climate change, when we get very variable environments and incredibly changeable, when we get Texas ice storms. (Through people who know about people), biology, behavior and technology will be critical, I think, because no matter what our bodies will be physiologically limited, both extreme heat and extreme heat. Our bodies are not limited, so we adapt our behavior and go to technology to do what our bodies cannot do.
