First thing i would like to clarify is that this article is about sweat (perspiration) and not about sweets (sweet things).
The normal body temperature is 37.5C ( C stands for degrees centigrade ) and it does not increase or decrease. You might ask me how??? A hot cup of coffee / tea will slowly cool down , A chilled bottle of soft drink will heat up to the room temperature .........
How the body maintains its temperature at 37.5C ??
During Winters :
When the outside temperature is less than 37.5C say 35C the body starts losing heat to the surroundings as per the fact that heat flows from a body at higher temperature to lower temperature.To compensate for the heat lost to the surroundings the body burns more calories similar to burning wood or any other fuel to generate heat.At the same time the hair on the body stands erect and traps a layer of warm air against the skin. When the outside temperature is very low say 15C the body starts to shiver. Shivering is a vigorous exercise which generates a lot of heat just like any other exercise does and the heat thus produced helps in maintaining a constant body temperature. At the same time blood flow to skin is reduced since most of the heat is lost through the skin.This is how the body reacts to low temperatures.
During Summers :
The surroundings are very hot during summers say 40+ C. The body starts to get hotter and the body temperature rises by a fraction of a degree. The brain immediately initiates sweating since sweat is mostly water and when water evaporates it takes away a lot of heat and gives a cooling effect..
Now comes the tricky part. In a dry place like Hyderabad or Warrangal the sweat produced by the body instantaneously evaporates and gives a cooling effect. But in a very humid place like Vizag the sweat cant evaporate since the air is already loaded with moisture and cant take anymore moisture. This is similar to adding sugar to water. Beyond a certain limit the sugar wont dissolve in water i.e the water is saturated with sugar. In a similar way the air is saturated with moisture. This causes the sweat to accumulate and drip.
Theres the answer. You sweat everywhere but it gets accumulated in humid places and evaporates in dry place. The answer to the humidity is the Bay Of Bengal . A lot of water evaporates due to the sun.
How many of you have felt that Vizag is a sweaty place and makes your clothes stick to your body ??
Kya Hyderabadis how did it feel like to suddenly face humidity as high as 99% ??? All people from non - coastal areas complain about the high humidity in coastal areas. Im writing this article to clarify the myths about sweating in Vizag and the lack of sweat in hyderabad / non-coastal areas.
 |
| Man sweating while exercising |
The normal body temperature is 37.5C ( C stands for degrees centigrade ) and it does not increase or decrease. You might ask me how??? A hot cup of coffee / tea will slowly cool down , A chilled bottle of soft drink will heat up to the room temperature .........
 |
| Hair standing erect to trap heat (goosebumps) |
How the body maintains its temperature at 37.5C ??
During Winters :
When the outside temperature is less than 37.5C say 35C the body starts losing heat to the surroundings as per the fact that heat flows from a body at higher temperature to lower temperature.To compensate for the heat lost to the surroundings the body burns more calories similar to burning wood or any other fuel to generate heat.At the same time the hair on the body stands erect and traps a layer of warm air against the skin. When the outside temperature is very low say 15C the body starts to shiver. Shivering is a vigorous exercise which generates a lot of heat just like any other exercise does and the heat thus produced helps in maintaining a constant body temperature. At the same time blood flow to skin is reduced since most of the heat is lost through the skin.This is how the body reacts to low temperatures.
During Summers :
The surroundings are very hot during summers say 40+ C. The body starts to get hotter and the body temperature rises by a fraction of a degree. The brain immediately initiates sweating since sweat is mostly water and when water evaporates it takes away a lot of heat and gives a cooling effect..
Now comes the tricky part. In a dry place like Hyderabad or Warrangal the sweat produced by the body instantaneously evaporates and gives a cooling effect. But in a very humid place like Vizag the sweat cant evaporate since the air is already loaded with moisture and cant take anymore moisture. This is similar to adding sugar to water. Beyond a certain limit the sugar wont dissolve in water i.e the water is saturated with sugar. In a similar way the air is saturated with moisture. This causes the sweat to accumulate and drip.
Theres the answer. You sweat everywhere but it gets accumulated in humid places and evaporates in dry place. The answer to the humidity is the Bay Of Bengal . A lot of water evaporates due to the sun.
No comments:
Post a Comment