Debate upon the factors triggering the obesity problem in human body didn't see any conclusion till the mid-20th century, but with the happening of Second World War, lifestyle of people started changing, thereby prompting more facts upon the issue to come out and clear the picture.
Dieticians and exercise professionals have long supported their own sides and roles of diet and exercise to maintain a healthy body weight, but some evidences are finally out to give a clear picture upon the factors maximum affecting the body weight.
With lifestyle citing more changes than the diets of the people since the time, the picture started getting clearer with time too. Evidences show that a sudden decline in physical activity has majorly affected the lives of adults (including many children) by fuelling the rise in obesity cases.
Research and science have started suggesting that people must control their eating habits if they want to control their body weight. Eating too much has become one of the biggest causes of weight gain for most people in recent years, says research. Moreover, consuming only 20 calories (a day) more than the body's need can make the person gain weight.
Researchers comment that technology has also played a big role in triggering obesity in majority of population because modern technology has outstripped a person's ability of physical involvement in his routine life. Thus, cutting down the intake of calories can only serve them well in weight loss.
To lose a pound (0.5kg) of weight in a week, a person has to reduce his calories intake by 500 calories a day than his energy needs, suggest researchers. A careful food diary can really help a person by spotting him efficiently for shaving off his calories.