Furnished room for rent, 15 to 20 minute walk to NIH metro station. Empty nester looking to share her spacious split level home in Bethesda with a responsible person who values a healthy lifestyle and being part of a community. Rent includes all utilities, access to kitchen, living room, rec room, outdoor deck, home gym in basement, and laundry room. I have a dog and cannot accept additional pets.  References from friends or co-workers are requested.