I tend to walk fast. Not because I want to end the conversation quickly, but since I no longer run on the beach, I love the idea of exercising and conversing at the same time.

I was feeling a little guilty about the fact that people feel they have to keep up with me until I recently read that how fast you walk after age 60 is a good gauge of longevity. Your walking speed can predict dementia, shorter life spans, and depression. To learn more, check out this study in the most widely read and highly-cited, peer-reviewed neurology journal.

Here’s a video of me talking about where I learned to walk fast: San Francisco.