The Psychology of Traffic and Obesity

  • Dr. Tanya Berry says the thing that most often kept people from walking was the feeling that there are too many cars on the street. (Photo courtesy of Nathan Johnson, iWalk)

Researchers tell us one way to stay trim is to walk more often. But that’s hard in some neighborhoods – maybe sidewalks are bad or there’re no stores to walk to. Shawn Allee found one researcher who thinks what really stops us … is actually in our heads.

Transcript

Researchers tell us one way to stay trim is to walk more often.

But that’s hard in some neighborhoods – maybe sidewalks are bad or there are no stores to walk to.

Shawn Allee found one researcher who thinks what really stops us … is actually in our heads.

Dr. Tanya Berry researches physical activity, and she surveyed people living in Edmonton, Canada.

She calculated how trim or fat they were, then she logged details about their neighborhoods, things like how many stores are nearby and how many cars pass through the area.
Berry says the thing that mattered most, and kept people from walking was a subjective feeling that there are too many cars on the street.

“There was too much traffic in their neighborhoods, it made it difficult to walk, so they chose to jump in their cars and contribute to the traffic problem.”

Berry says her research team will look at how buildings and streets can be designed to make pedestrians feel there’s less traffic than there actually is, and maybe feel more comfortable walking down the street.

For The Environment Report, I’m Shawn Allee.

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Study Supports Honeybee Dance Hypothesis

  • When foraging bees find food, they fly back to the hive and dance. (Photo by Jenny W.)

Bee researchers have long believed that honeybees use a special dance to show their hive-mates where food is. A study published in the journal Nature provides direct evidence that the dance works. The Great Lakes Radio Consortium’s Rebecca Williams explains:

Transcript

Bee researchers have long believed that honeybees use a special dance to
show their hive-mates where food is. A study published in the journal
Nature provides direct evidence that the dance works. The Great Lakes Radio
Consortium’s Rebecca Williams explains:


Honeybees have a complex way of talking about dinner. Forager bees fly out
of the hive in search of pollen and nectar. When they find something tasty,
they fly home to the hive and dance.


Researchers in England caught bees that had watched the dance and tagged
them with tiny radio trackers. Then they followed the bees’ exact flight
paths.


Joe Riley is lead author of the study. He says the research relieves some
doubts about how well honeybees interpret the dance.


“The only thing that was missing was a really convincing demonstration that
this happened. And what we saw what happened was they left the hive,
circled for a minute or two to get their bearings and then flew straight off
in this predicted direction and for the distance that was coded in the
dance.”


Riley says the bees do need a little help once they get close to the food
source: they have to look and sniff around to find the right flower.


For the GLRC, I’m Rebecca Williams.

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