Office workers spend the same amount of calories as hunters and gatherers in Africa. This fact shows that it is very likely that lazy activity is not the culprit of the current obesity epidemic.
Until now, many people still think that manual labor causes people to lose more energy and are less active in the obesity epidemic in rich countries today. But Herman Pontzer, a researcher at Hunter University in the US, is one of those who do not believe in this assumption.
To demonstrate, Pontzer and a number of colleagues from Stanford University and the University of Arizona track calories (energy) consumed by those working in the US, Europe, and hunting practitioners. Gathered by the Hadza tribe in Tanzania, Telegraph reported.
The results show that the amount of calories that Aboriginal people in Tanzania consume is no bigger than office workers in the US and Europe. That finding demonstrates that the "burning" level of the human body does not depend on lifestyle and work.
"The human body uses energy in activities that we do not see, such as maintaining the activity of internal organs and the immune system. If we consume too much calories in physical activity, calorie intake for other processes will decrease, " Pontzer explained.
But while the rich countries in the West are facing obesity, the Hadza tribes possess a toned body with reasonable weight. In addition, the average life expectancy of the Hadza tribe is also quite high. This situation makes the research team believe that the situation of lazy movement is not the main culprit causing the epidemic of obesity.
In the past 50 years, people in rich countries have brought in more food than our real needs. That is the root of the problem.
Despite those who still use less calories than those with manual labor, Pontzer still encourages people to exercise regularly, because physical activity offers many health benefits.
"We claim that exercise is a very important habit for health, but it is not a powerful weapon in the fight against overweight," concluded Pontzer.