French fries . pizza pie . chicken feed pick . If you think of your favorite food , there is probably a common denominator : kale , Strategic Arms Limitation Talks , and rich . Why do mankind overindulge in food we know are unhealthy ?
Throughout ourevolutionary history , individuals needed high-pitched caloric diets to keep up with the rigors of aliveness . Taste buds evolved to favor solid food dense in calories , which complement the vitality level required to go and expand . action was mellow , as hunt , finding solid food and water , and escaping vulture were full time priorities . Storing fat was necessary for multiplication when solid food was an uncertainty .
However , as technology and farming expanded on the spur of the moment , daily life became increasingly sedentary . Even though man are wired to crave these foods , few now spend the amount of push required to keep up with the diets of our ancestors . As such , global fleshiness is on the rise . As of 2010 , 1.4 billion adults around the world are look at overweight or corpulent .
But is it really that cut and dry ?
Routinely eating high kilogram calorie solid food will desensitize dopamine receptors in the brain . This means that over time , a someone must eat more to get the same point of satisfaction from eat . While the fact that high fat food for thought can have a drug - like effect is nothing fresh , it has latterly been discovered thatthis impression starts in the catgut itself , not with the tastebuds as previously recall . Without that satisfied feeling , many people engorge on a daily basis , leading to exercising weight amplification . However , this does not have to be a lasting shift . Decreasing the frequency of high juicy foods will return the hormone horizontal surface to normal . unluckily , the job does n’t terminate there .
Fixing the corpulency epidemic is not as simple as " small calorie in vs. gram calorie out . " A growing amount of inquiry has show that epigenetics can influence a waistline . Children of corpulent fathers are likely to have changes at the gene for insulin - type growth factor 2 ( IGF2 ) . Mutations on this factor can run to colorectal , ovarian , and kidney malignant neoplastic disease , though there is no grounds yet that epigenetic markings on the gene will stimulate disease .
Now the quandary : no matter what is causing the corpulency , it is n’t healthy . Obesity convey on a master of ceremonies of disease , include : heart disease , in high spirits cholesterin , infertility , Cancer the Crab , ulcers , tegument contagion , Type II diabetes , and high blood pressure , among others . In the United States alone , fleshiness - related diseases be a total of $ 190 billion yearly , pass the amount spent on disease colligate to smoke .
