Can you Lose Weight on Vacation Without Trying?

Just returned from a 10 day trip to France. I was looking forward to all their great bread and cheese. It was a group trip, about 31 people in all: many college students and some adults. Our first day we got off the plane in the morning, stored our luggage at the hotel and our tour guide began our tour of Paris. Yes, we did take the metro into Paris proper but then the walking tour began including Notre Dame and many sites near there. In a park a French teacher had a group of elementary students out for a picnic lunch. What was striking was there were no overweight kids in the class. Then a group of high school students came with their lunch, again no overweight students. As we continued our walking tour, I noticed many Parisians walking to lunch, to the metro, carrying their 2-3 foot long baguettes. Again, I observed that no one was obese and almost all were normal weight. That night I looked at my pedomet...