When they do do intentional physical activity, it's the things they enjoy. They tend to walk, the only proven way to stave off cognitive decline, and they all tend to have a garden.
进行惯常体力运动， 是他们享受这些事情的时候。他们常常步行， 这被证明是防止认知降低的唯一方法， 并且他们人人有花园。