Public Health

A prime target of the early environmental movement was car tailpipes. And for good reason. Put a human in a garage with a running auto in the old days, and he or she would pass out within minutes and be dead in an hour. Run a few million vehicles daily in New York or Los Angeles, and the toxic air would kill thousands each year and sicken many more.

The NYC Department of Health announced the results of a citywide survey today [PDF] assessing the health benefits of regular walking and biking. Based on telephone interviews with more than 10,000 New Yorkers, the health department reveals that people who incorporate walking and biking into their daily routine are significantly more likely to report good physical and mental health than those who don't. The report concludes with recommendations to encourage walking and biking, including steps like building safer infrastructure for pedestrians and cyclists.

Transportation's effects on public health are rarely discussed by policy-makers, but they remain very real -- and the National Research Council (NRC) put a number on them Monday, reporting that cars and trucks have about $56 billion in "hidden" health costs that are not reflected in the price of oil or electricity.

The Walk21 Conference starts tomorrow, and in addition to some amazing workshops, there's also a chance to meet and hear from leaders in the global push to make cities more livable.

The Walk21 Conference is coming up in a few days, and there's no shortage of interesting sessions to attend. One of the great parts of the conference is that it tackles issues shared by all cities, and with participants coming in from around the world, it'll be a good chance to talk about what works, what doesn't, and combine that into urban planning strategies that can be exported worldwide.

During the Washington budget debate earlier this year, a phrase widely attributed to White House budget director Peter Orszag was rolling off many a reporter's keyboard: "Health reform is entitlement reform."

Despite a growing awareness among conservatives that walking and biking are causes worth backing, Republicans on Capitol Hill continue to condemn bike-ped programs as wasteful "pork". The GOP's latest potshots at sustainable transportation come during debate over a health care bill that focuses mainly on insurance and hospitals, but also includes a public health grant program aimed at encouraging exercise.

When she wrote a column for the New York Sun last year about letting her nine-year-old ride the subway on his own, Lenore Skenazy was pilloried by many as an irresponsible mom. She stuck to her guns, though, and started a blog dedicated to "sane parenting", advocating the idea that we are over-sheltering our children from infinitesimal threats such as stranger abduction. According to Skenazy, the kind of independence represented by that subway trip is necessary and healthy for children -- and their parents as well.

New research from Purdue University highlights the futility of controlling drivers' speed with signs. The Times' health blog has the story: