60 percent of unnatural Hungar drive is linked to mental fatigue and thirst or dehydration .

In the hot or humid weather of India ; if a person walks for 2 to 6 km to visit a shop on road , first he has to face to traffic, then he sweats because of hot weather , and common man also does not understand the meaning of humidity ; and its effect on body . Let say that person does not have a will power and mind control ; usually because of all this , a person focuses on high calorie food which has a high amount of salt , sugar and oil ; for example snacks and junk food . This is just an example to illustrate that 50 to 60 percent of our hunger pangs or urges are related to thirst or dehydration and mental fatigue or kind of mental stress . You go to the market and come back , and see how many steps you have taken on your smart watch and then also see how many calories you have burnt. Usually the answer will be that you have taken around 5000 to 9000 steps and the calories burnt are around maximum of 400 . Now if you eat a samosa in the market , then one samosa is around 350 calories as per the scientific literature . So , by visiting market , especially by walking , you are burning maximum of 400 calories but when you eat a samosa in the market , you are taking around 400 Calories .