I think that would be caused by the body's metabolism to work less and do an activity that uses less power, she went home and worked less and less, but she likes more arm chair.
I think that would be caused by the body's metabolism works. And activities that are used less as she walked home and work less, but she liked the chair arm more.
I think should from the system of metabolism in the body a little work. And activities that do use less as she walked less housework but she likes to sit the chair arm.