Most people don't realize just how small a lifestyle change it takes to affect weight into middle age. When habits are amplified by the fulcrum of consistency over decades it makes a huge difference.

Just consider that all it takes to become 100 lbs overweight by age 50 is an extra 38 calories a day starting at age 25. The difference between morbid obesity and healthy weight can literally come down to one donut a week or walking an extra quarter mile a day.