A Weighty Issue Ielts Reading Answers Direct

The chemical processes in a living organism to maintain life.

Biological factors matter. Genes influence appetite, fat distribution, and metabolism; early-life nutrition and maternal health affect lifelong risk; and the body’s homeostatic mechanisms often resist sustained weight loss. However, biology alone cannot explain the recent, rapid rise in obesity prevalence. To account for population-level change over a few decades, environmental and social shifts must be central. The modern food environment—abundant, inexpensive, highly palatable, energy-dense foods heavily marketed to children and adults—overwhelms biological appetite controls. At the same time, urban design and workplace patterns have made daily life more sedentary, reducing incidental physical activity. Socioeconomic factors compound risk: lower-income communities often face limited access to fresh foods, fewer safe places to exercise, higher stress, and less time for food preparation, all of which increase vulnerability. A Weighty Issue Ielts Reading Answers