New Yorkers have always known they're the luckiest in the world when it comes to things to do - it's a lucky few that have the option of whole body cryotherapy to rejuvenate and refresh, for a start. New research though has shown that designing more activity friendly cities like ours could actually save millions of lives.

A study recently published in the Lancet mapped residential features in cities in 11 countries around the world, the US included, and compared them to the physical activity done by it's inhabitants.  The four neighbourhood features most strongly associated with an increase in physical activity were residential density, number of intersections, number of public transport stops, and number of parks within walking distance.

With the authors estimating that inactivity results in 5 million deaths per year, the implications of this study are that urban planning of more activity friendly cities could save millions of lives in the US and abroad. And that now you have a retort when Aunty Mildred from Idaho gives you grief about Manhattan shortening your lifespan.