It might be the meds: Are seniors driving under the influence?

Join Our Community of Science Lovers!

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American



On supporting science journalism

If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.


Many older adults might be driving under the influence without even knowing it. Common drugs—from painkillers to beta-blockers—can impair driving abilities by causing dizziness, sleepiness and even disorientation. But seniors, who are more likely to take them, are rarely aware of the risk, according to a recent report [pdf] by the AAA Foundation for Traffic Safety (and highlighted today by the Wall Street Journal).

Of the 630 55-plus individuals surveyed—92 percent of whom still drove—about 69 percent were taking at least one prescription medication that could impair their driving, but more than 80 percent had not been warned about the possible impact of these drugs on driving. And of those who were taking five or more of these potentially impairing drugs (about 10 percent of the respondents), only about 22 percent had "some awareness" of the side effects, leaving the rest in the dark when they got behind the wheel.

In fact, as age—and likelihood of taking more medications—increased, the awareness of these potential side effects actually decreased.

The lack of knowledge about the risks associated with medications worries some. "That's really scary," Peter Kissinger, president of the AAA Foundation, told The New York Times last week, referring to the percentage of drivers who might be ignorant of being impaired by the drugs prescribed to them. He went on to note that those in the health care industry "are not effectively communicating known risks." And that could endanger seniors and others on the road.

Just how many accidents are caused by drivers under the influence of legal drugs? Researchers don't know yet, notes the Times, because often people are not tested for medications—like they might be for alcohol—after a wreck.

Image courtesy of iStockphoto/Rendery

It’s Time to Stand Up for Science

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history.

I’ve been a Scientific American subscriber since I was 12 years old, and it helped shape the way I look at the world. SciAm always educates and delights me, and inspires a sense of awe for our vast, beautiful universe. I hope it does that for you, too.

If you subscribe to Scientific American, you help ensure that our coverage is centered on meaningful research and discovery; that we have the resources to report on the decisions that threaten labs across the U.S.; and that we support both budding and working scientists at a time when the value of science itself too often goes unrecognized.

In return, you get essential news, captivating podcasts, brilliant infographics, can't-miss newsletters, must-watch videos, challenging games, and the science world's best writing and reporting. You can even gift someone a subscription.

There has never been a more important time for us to stand up and show why science matters. I hope you’ll support us in that mission.

Thank you,

David M. Ewalt, Editor in Chief, Scientific American

Subscribe