Why Are Our Bodies Uncomfortable At 98 Degrees Fahrenheit Weather?

From Biology Forum:

Why are our bodies uncomfortable at 98 degrees Fahrenheit weather? If our bodies are naturally at 98 degrees Fahrenheit, why then, is it so hot and uncomfortable when the air around us is the same temperature?

Answer: Our bodies are naturally 98 degrees in an environment when we can shed some of that internal heat into the environment around us. In a 98 degree environment we can't rid ourselves of the excess heat our bodies generate.

Why Does 98 Degrees In Water Feel Cool But 98 Degrees In Temperature Outside Feels Hot?

From Weather Forum:

Why does 98 degrees in water feel cool but 98 degrees in temperature outside feels hot? While bathing in my hot tub, even 98 or 99 degrees feels lukewarm, but 98 degrees air temperature feels really hot. Does anyone know the reason behind this? I have asked many intelligent, even PhD people and they have only come up with guesses that we have proved wrong. I would like some scientific facts.

Answer: It has to do with Heat Index. See the heat index chart http://www.srh.noaa.gov/srh/jetstream/global/hi.htm With basic climate regions around the world, there are some place where the weather is considered hot. But just heat alone does not make high temperatures a threat. There is an old saying stating "It's not the heat, it's the humidity". Well, actually it's both. Heat waves are not easily photographed, like the destruction of tornadoes, hurricanes and floods and therefore tend to not have the same visual impact as these other disasters. Yet, heat waves kill more people in the United States than all of the other weather related disasters combined. The 10-year average (1997-2006) for heat related deaths in the U.S. is 170 in a typical year. Our bodies dissipate heat by varying the rate and depth of blood circulation, by losing water through the skin and sweat glands, and, as the last extremity is reached, by panting. As the body heats up, the heart begins to pump more blood, blood vessels dilate to accommodate the increased flow, and the tiny capillaries in the upper layers of skin are put into operation. The body's blood is circulated closer to the skin's surface, and excess heat drains off into the cooler atmosphere by one or a combination of three ways... radiation, convection, and evaporation. At lower temperatures, radiation and convection are efficient methods of removing heat. However, once the air temperature reaches 95°F (35°C), heat loss by radiation and convection ceases. It is at this point that heat loss by sweating becomes all-important. But sweating, by itself, does nothing to cool the body, unless the water is removed by evaporation (sweat changing to water vapor). The downside of this method of cooling is that high relative humidity retards evaporation. Relative humidity is a measure of the amount of water vapor contained in the air, divided by the maximum amount the air can hold, expressed as a percent. A relative humidity of 50% means the air contains ½ of the water vapor it can actually hold. The maximum amount of water vapor the air can hold is dependent upon the temperature (the "relative" in relative humidity). The higher the temperature, the more water (actually water vapor) the air can hold. For example, air with a temperature of 32°F (0°C) can hold about 0.16 ounces of water. Air with a temperature of 80°F (27°C) can hold about an ounce of water. So, what does this all mean? Sweat is evaporated (changes from a liquid to a gas, i.e. water vapor) when heat is added. The heat is supplied by your body. The results are summed up in the table below... We, at the National Weather Service, as part of our mission for protecting life and property, have a measure of how the hot weather "feels" to the body. The Heat Index is based on work by R.G. Ste adman and published in 1979 under the title "The Assessment of Sultriness, Parts 1 and 2." In this work, Ste adman constructed a table which uses relative humidity and dry bulb temperature to produce the "apparent temperature" or the temperature the body "feels". We use this table to provide you with Heat Index values. These values are for shady locations only. Exposure to full sunshine can increase heat index values by up to 15°F (8°C). Also, strong winds, particularly with very hot, dry air, can be extremely hazardous as the wind adds heat to the body. The Heat Index Chart is below. How to read the chart...Follow the temperature line until it intersects the relative humidity line. Then read the Heat Index on the curved line. For example, an air temperature of 100°F (38°C) and Relative Humidity of 40%. Follow the 100°F (38°C) temperature line until it intersects the 40% relative humidity line. Then curved line that also intersects is the Heat Index of 110°F (43°C), or Very Hot. That is the temperature the body thinks it is and attempts to compensate for that level of heat. Remember, these values are in the SHADE. You can add up to 15°F (8°C) to these values if you are in direct sunlight. The chart below tells you the risk to the body from continued exposure to the excessive heat.

If Our Body Is 98 Degrees Why Do We Get Uncomfortable When Its That Hot Out?

From Biology Forum:

If our body is 98 degrees why do we get uncomfortable when its that hot out? If the human body is 98 degrees why do we get uncomfortable in hot weather and why cant we eat food that hot?

Answer: Because, biochemical reactions that release heat are constantly happening throughout the body. This heat is dispelled by a combination of heat exchange from the blood to the outside environment, and the evaporation of sweat. Even at very low temps humans sweat. At "comfortable" temps between 75-80 degrees Fahrenheit, the amount of heat dispelled by sweat and exchange from the blood is balanced with the heat being generated by internal biochemical reactions. When the outside temp starts to warm, even though sweat may evaporate faster, the body has a harder time keeping up with the heat increase and cooling itself.

Why Do We Sweat When Its Hot When Our Body Temp Is 98 Degrees?

From Words & Wordplay Forum:

why do we sweat when its hot when our body temp is 98 degrees? Our normal body temp is 98.6 degrees. It seems like we would be very comfortable at 98 degrees instead of feeling hot and sweating. Why is that temp not comfortable? What makes our body do this?

Answer: Our body sweats to cool us down when there's sweat on our head and the wind hit us it cools us down. 98.6 degrees is our comfortable temperature we don't sweat at 98.6 it has to be higher to sweat. Did you know that if you was stuck on a desert island with no water your body would stop sweating to save fluids amazing!

Why Do We Get Hot When It'S 98 Degrees Outside?

From Other - Science Forum:

Why do we get hot when it's 98 degrees outside? Why do we get hot when it's 98 degrees outside when our internal body temperature is 98.6? Shouldn't we feel perfect at that temp and cold when it's blue, hot when it's above?

Answer: Your body doesn't stop burning its own thermostat!

Is 98 Degrees F A Fever On A Pacifier Thermometer?

From Infectious Diseases Forum:

Is 98 degrees F a fever on a pacifier thermometer? Lil, for an adult? Yes, we lost the actual thermometer and had this little thing but lost the little paper with the chart SO I need to know... Is 98 degrees F a Fever on a pacifier thermometer for an adult?

Answer: Yes. That's still normal. Pacifier thermometers are not really accurate, but 98 degrees is still quite normal. If it's higher than 102 degrees then that's a temperature.

Is It Normal To Be 83 Degrees Inside When It'S 98 Degrees Outside?

From Maintenance & Repairs Forum:

Is it normal to be 83 degrees inside when it's 98 degrees outside? I have had problems with the ac in my apartment all summer long. It's a ND floor 500 sq ft apt. The apartments finally put a new outside unit in this week after two months of supposedly trying to fix the original. Day one it blew out cold air and the apartment cooled down. Day two it is blowing out like a fan and my apartment is 83 degrees inside when it's 98 degrees outside. What else could be wrong?

Answer: No way...! Your AC it's not operating right. Most likely the coil unit located outside, has some issues. Few to mention can be: 1) cooling compressor not operating, 2) exterior fan not operating, 3) or a freon gas leak. Since you live in apartment unit, this should be directed to your landlord or manager. You must have a contract in place and tenants are entitled to have utilities and appliances in good working order. Good luck...!

20G Of Liquid Mercury At 98 Degrees C Is Placed In G Of Water Initially At 25 Degrees C. What Is Final Temp?

From Chemistry Forum:

20g of liquid mercury at 98 degrees C is placed in G of water initially at 25 degrees C. What is final Temp? G of liquid mercury at 98 degrees C is placed in G of water initially at 25 degrees C. What is final Temperature of the water, assuming the Styrofoam calorimeter absorbs no heat at all?

Answer: Specific heat of mercury = 0.1395 J/ (g *K) Specific heat of water = 4.184 J / (g *K) Heat lost by mercury = heat gained by water Where Q = heat; m = mass; C = heat capacity Q = mC(T - To) Substituting (20)(0.1395)(98 - T) = (47)(4.184)(T - 25) 5189.62 = 199.438 T T = 26.02 *C

Is It Possible To Be 98 Degrees In The Shade And 100 Degrees In The Pool In Spain?

From Weather Forum:

is it possible to be 98 degrees in the shade and 100 degrees in the pool in spain? my friend has been writing all over face book how hot it is in Spain, she recons its 98 degrees in the shade, I swear its not even possible for someone to be in that heat? and she said its not Fahrenheit, can anyone help?

Answer: NO! its definitely not Soc you would die from heat stroke and dehydration and stuff it WILL be of that's ALTO MORE LIKELY! and if it was EEOC in the pool you would lit rally be boiled to death and get burnt extremely until you was fully cooked to eat

How Would Our Seasonal & Day/Night Cycle Be If Earth'S Axis Was Tilted 98 Degrees?

From Astronomy & Space Forum:

How would our seasonal & day/night cycle be if Earth's axis was tilted 98 degrees? What would the day/night cycle and seasonal cycle be like if the axis was instead tilted by 98 degrees (like uranus) instead of 23.5?

Answer: In the middle of summer the sun would go around the sky 8 degrees from the zenith: no night. It would then spiral lower and lower until it dipped below the horizon and you would have winter and darkness for half a year as the sun spiraled around the opposite pole.

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