BPK 140 Chapter Notes - Chapter 6: Hydrostatic Weighing, Hyperplasia, Body Fat Percentage
Document Summary
Since 1980, obesity rates have doubled around the world. 2. 5 billion adults over 20 years old are obese. 65% of the world"s population live in countries where more people die of complications from being overweight and obese than they do from being underweight. Statistics canada lowest obesity rate at age 18-19, then increases. More calories many extra calories come from refined carbohydrates: pop/cola accounts for half of the increase of caloric intake. Bigger portions size of packaged foods and restaurant meals have increased two to five times. Fast food frequent fast food eaters gain more weight and develop metabolic abnormalities that increase their risk of type 2 diabetes. Hunger and satiety hormones (insulin, adrenaline) may stimulate or suppress hunger: appetite the psychological desire to eat; easily led into temptation, satiety the feeling of being full or satisfied. Physical inactivity research shows a dramatic drop in exercise in university years.