Weight gain can be deceptive
A student walking 0.8 km (1/2 mile) to college and back 5 days a week, burns 100 kcal per day, during the walk.
Over three 12 week terms, this adds up to burning 18,000 kcal a year - that's equivalent of 2.2 kg (5 lbs) of fat.
If the student leaves college at 22 weighing 70 kg (11 stone) buys a car and doesn't compensate for the reduction in energy expenditure in any other way, by the time he is 30, he will weigh 89 kg (14 stone)
- Dr Dawn Harper (Dr. Dawn's Health Check)
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