For Durkheim the result of the division of labour is positive in that there is no need to compete in the sense of struggling just to survive. Division of Labour. The division of labour is, then, a result of the struggle for existence, but is a mellowed dnouement.
Recommended daily calorie intakes vary across the world. According to the National Health Service (NHS), UK, the average male adult needs approximately 2,500 calories per day to keep his weight constant, while the average adult female needs 2,000. US authorities recommend 2,700 calories per day for men and 2,200 for women.
Women need fewer daily calories per day as they age. The U.S. Department of Agriculture's National Health and Nutrition Examination Survey found that the average American woman over age 20 takes in over 1,700 calories per day. moderately active woman needs about 2,200 calories a day up to age 25. Then, until she reaches age 50, she should get 2,000 calories a day and taper down to 1,800 calories a day from age 51 on.