After a long, hot run together, your friend tells you that you should dunk your head into a cooler of water to lower your body temperature more rapidly, rather than sitting and waiting to cool down. What do you think? Form a hypothesis about how the ice-cold water might affect the rate at which your body temperature returns to normal. How could you test your hypothesis?

Question

Accepted Answer

Hey everyone, Let's take a look at this question together. Which of the following strategies is not helpful in maintaining body temperature in a hot environment. So let's recall the different strategies that are listed here and try to figure out which one of these does not help maintaining body temperatures when we're in a hot environment. And so when we're talking about something that is not helpful in maintaining body temperature specifically in a hot environment, we're talking about something that keeps increasing internal temperature because we're looking for something that does not help lower that internal temperature and causes it to keep rising. So looking at our options here, we can see answer choice A Visa dilation, which we know from previous content that that is the dilation or expansion of blood vessels. And so when Visa dilation occurs, it actually works to increase blood flow to the skin, which removes body heat. So that is not what we're looking for. And so answer choice B perspiration, which we should all know has to do with sweating, which we know that when we're sweating our body per spires trying to cool it down. So it actually cools the body down. And it does this by by releasing high energy water. So releasing i energy water, which to us is wet. So that is also not what we're looking for. Answer choice. E says shivering thermogenesis. No. Looking at the term thermo genesis, we can break that down because we know that thermo refers to heat and then genesis refers to the production of thermal genesis, meaning the production of heat obviously would increase the body temperature, and it does this by producing heat through muscle contractions and so answer choice C. Is actually a way that the body could increase that internal temperature, meaning it is a strategy that is not helpful in maintaining body temperature in a hot environment. So answer choice C. Is the correct answer. And just to double check answer choice D. Is incorrect because panting uses the respiratory system to dispose of heat so that would also lower the body's temperature, meaning that answer choice C. Is the only strategy listed here that would be not helpful in maintaining body temperature in a hot environment. I hope you found this video to be helpful. Thank you and goodbye.

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Key Concepts

Thermoregulation

Heat Transfer Mechanisms

Hypothesis Testing