quote: For example, research at the University of London showed that part of the hippocampus of London taxi cab drivers is actually larger than that of a non-taxi driver control group. Despite the most experienced drivers having the most robust hippocampus, it's still not known whether finding those novel routes through London's Byzantine maze of streets caused the hippocampus to grow, or if having a robust hippocampus helps a person become a successful cab driver, explains Epstein.
quote: 2. Did people develop Alzheimer's all the time before cars were invented because they were not able to develop that part of their hippocampus?
quote: 3. Are these people using GPS units when walking around the house/office/etc?