Public Health

Sidewalks, bike lanes, traffic calming projects -- they save lives. Not just by protecting cyclists and pedestrians (not to mention motorists), but by encouraging physical activity that leads to a healthy life.

One of the most talked-about presentations at this week's National Bike Summit came from Jason Gaikowski, director of sales for the Bloomington, Minnesota-based wholesale distributor Quality Bicycle Products. Over the last several years, QBP has ramped up its employee health and wellness program, which includes incentives to bike to work. At a time when most employers are grappling with rising insurance premiums, a study by the company's health insurance provider, HealthPartners [PDF], suggests the program has helped reduce QBP's health care costs and increase employee productivity.

"A leading voice for better urban design for the sake of good health." "A public health/social justice hero." Dr. Richard Jackson, chair of environmental health at UCLA, is a leading voice for transportation reform whose work has linked America's sprawl to the nation's high rates of obesity.

Check out these two maps, the first showing obesity rates (by county) in the United States and the second showing the percentage of commuters who travel by car (via Planetizen).

Gerontologists in a laboratory at the University of Southern California exposed a group of mice to the same atmospheric conditions that humans encounter when driving along the freeway. Horrifyingly, they discovered that the mice’s brains showed the kind of swelling and inflammation associated with diseases such as Alzheimer’s. The researchers didn’t super-dose to get these results: the mice were exposed to freeway air for the equivalent of 15 hours a week -- less than the 18.5 hour average Americans spend in their cars. Jokes aside about getting those darn mice off the road, the study suggests that driving less can reduce our risk of brain damage.

Dr. Richard J. Jackson is Professor and Chair of Environmental Health Science in the UCLA School of Public Health. We're happy to host opinion pieces from academic and other community leaders. Contact damien@streetsblog.org if you're interested.

It makes intuitive sense that cycling and walking to work regularly would help people stay healthy, but until now there's only been anecdotal evidence suggesting that places where walking or cycling to work is common also have lower rates of obesity.

A new report written by the Victoria Transport Policy Institute's Todd Litman for the American Public Transit Association [PDF], the trade organization for the nation's transit agencies, reminds us that one of the most valuable benefits of transit is to our health. Summarizing the state of research in the field, "Evaluating Public Transportation Health Benefits" lays out the basic fact that increasing transit use is an easy way of preventing thousands of unnecessary deaths each year. 

Two reports released last week underscored the increasing severity of America's obesity epidemic. And the eye-opening findings add to the mounting evidence that stopping the spread of obesity and its attendant health risks will require changes to the nation’s transportation system as surely as it demands altering our diets.