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.
A sedentary woman of the same age requires 1,800 to 2,000 calories and an active 19- to 30-year-old needs about 2,400 calories. A moderately active woman between 31 and 50 needs 2,000 calories a day, while sedentary and active women of the same age need about 1,800 and 2,200 calories a day.