[davidf18]

Walking 30 minutes per day 5 days per week and losing 15 lbs (for an adult male) lessens the likelihood of a pre-diabetic person becoming diabetic by 60%.

In NYC where I live which has subways with stations that mostly do not have escalators people are constantly walking and walking up and down stairs as part of their daily activity.

During the hours long rush-hours it is also much faster taking subways than automobiles (e.g 15 mins instead of 45 mins).

Cities can be designed as NYC so that there is plenty of walking and stair climbing as part of the daily activity.

There are also plenty of Citibikes (cheap rentable bicycles) and bike lanes.