Month: August 2022

Picture this: you’re with friends in an unfamiliar forest using only a map and a compass to guide you to an upcoming checkpoint. There are no cell phones or GPS gadgets to help, just good old brainpower fueled by a sense of adventure as you wind through leafy trees and dappled sunlight.

This is not an excursion to a campsite or a treasure hunt. It’s a navigation sport called orienteering — a fun way to get outside, exercise, and maybe even help fight cognitive decline, according to a 2023 study.

What is orienteering?

Orienteering combines map and compass reading with exercise. Competitors (“orienteers”) race against a clock to reach checkpoints in outdoor settings that can range from city parks to remote areas with mountains, lakes, rivers, or snowy fields.

“You can go out in a group or on your own. You get a very detailed map and navigate your way to checkpoints that record your time electronically,” says Clinton Morse, national communications manager with Orienteering USA, the national governing body for the sport in the United States.

Because orienteers are racing the clock, they might run on trails, hike up hills, or scramble around boulders. That’s for foot-orienteering events. There are also orienteering events with courses geared for mountain biking, cross-country skiing, or canoeing.

How might orienteering affect thinking skills?

A small 2023 study published online in PLoS One found a potential link between orienteering and sharp thinking skills.

Researchers asked 158 healthy people, ages 18 to 87, about their health, activities, navigation abilities, and memory. About half of the participants had varying levels of orienteering experience. The other participants were physically active but weren’t orienteers.

Compared with study participants who didn’t engage in orienteering, those who were orienteers reported

• having better navigational processing skills (recognizing where objects were, and where participants were in relation to the objects)
• having better navigational memory skills (recalling routes and landmarks).

The study was observational — that is, not a true experiment — and thus didn’t prove that orienteering boosted people’s thinking skills. But the link might be plausible.

“Aerobic exercise releases chemicals in the brain that foster the growth of new brain cells. And when you use a map and connect it to landmarks, you stimulate growth between brain cells,” says Dr. Andrew Budson, lecturer in neurology at Harvard Medical School and chief of cognitive and behavioral neurology at VA Boston Healthcare System.

Where can you find orienteering opportunities?

There are about 70 orienteering clubs across the United States, and many more around the world (the sport is extremely popular in Europe). To find an orienteering event in your area, use the club finder tool offered by Orienteering USA.

How can you get started with orienteering?

People of all ages and athletic levels can take part, because orienteering courses vary from local parks to wilderness experiences. Costs are about $7 to $10 per person for local events, or $25 to $40 per person for national events, plus any travel and lodging expenses.

To make orienteering easy at first, Morse suggests going with a group and taking things slowly on a short novice course. “You don’t have to race,” he says. “Some people do this recreationally to enjoy the challenge of completing a course at their own pace.”

The trickiest part is learning to read the map. Morse’s advice:

• Turn the map as you change directions. Hold the map so that the direction you’re heading in is at the top of the page. For example, if the compass indicates that you’re heading south, turn the map upside down, so the south part is on top and easier to follow.
• Create a mental image of what the map is telling you. If there’s a fence along a field on the map, build a picture of it in your mind so you can recognize it when you see it, even if you haven’t been there before.

Tips for safe and enjoyable orienteering events:

• Dress appropriately. Wear comfortable clothes including long pants, good walking shoes, and a hat.
• Lather up. You’ll be outside for at least an hour, and you’ll need sunblock and possibly tick and bug spray depending on the terrain. Preventing tick bites that can lead to Lyme disease and other tick-borne illnesses is important in many locations.
• Bring some essentials. Pack water, a snack, sunblock, bug spray, and your phone. (Keep the phone turned off unless you need to call for help.)
• Use good judgment. Know that the shortest route on the map won’t always be the best, since it might take you up a hill or through thick vegetation. It might be better to go around those areas.

Once you learn the basics of orienteering, you can make it more physically challenging (and a better workout) by going faster and trying to beat your previous times, or by signing up for a more advanced course that’s longer and requires more exertion and speed.

And no matter which event you take part in, enjoy the adventure. “You’re not just following a path, you’re solving puzzles while being immersed in nature,” Morse says. “It’s a great way to experience the outdoors.”

About the Author

Heidi Godman, Executive Editor, Harvard Health Letter

Heidi Godman is the executive editor of the Harvard Health Letter. Before coming to the Health Letter, she was an award-winning television news anchor and medical reporter for 25 years. Heidi was named a journalism fellow … See Full Bio View all posts by Heidi Godman

About the Reviewer

Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing

Dr. Howard LeWine is a practicing internist at Brigham and Women’s Hospital in Boston, Chief Medical Editor at Harvard Health Publishing, and editor in chief of Harvard Men’s Health Watch. See Full Bio View all posts by Howard E. LeWine, MD

Prostate cancer is generally viewed as a disease of older men. Yet about 10% of new diagnoses occur in men age 55 or younger, and these early-onset cancers often have a worse prognosis. Biological differences partially explain the discrepancy. For instance, early-onset prostate cancers contain certain genetic abnormalities that don’t appear as often in older men with the disease.

But socioeconomic factors also play an important role, according to new research by investigators at Jacksonville College of Medicine (JCM) in Florida. The fact that poverty, educational status, and other factors governing socioeconomic status (SES) influence cancer survival is well established.

This is the first study to investigate how SES affects survival in early-onset prostate cancer specifically. The findings show that men with lower SES don’t live as long as the higher-SES patients do. “They’re more likely to be diagnosed at advanced stages,” says Dr. Carlos Riveros, a physician and research associate at JCM and the paper’s first author.

What the research found

During the investigation, Dr. Riveros and his colleagues evaluated data from the National Cancer Database (NCD), which is sponsored by the American College of Surgeons and the National Cancer Institute. The NCD captures data from over 1,500 hospitals in the United States. Dr. Riveros’s team focused specifically on long-term outcome data for 112,563 men diagnosed with early-onset prostate cancer between 2004 and 2018.

The researchers were able to determine the zip codes where each of these patients lived. Then they looked at per-capita income for those zip codes, as well as the percentage of people living within them who had not yet earned a high school diploma. Taken together, the income and educational data served as a composite SES measure for each zip code’s population. In a final step, the team looked at how the survival of early-onset prostate cancer patients across the zip codes compares.

The results were remarkable: Compared to high-SES patients, the low-SES men were far more likely to be African American, and less likely to have health insurance. More of the low-SES men lived in rural neighborhoods and had stage IV prostate cancer at diagnosis. Fewer low-SES patients were treated at state-of-the-art cancer centers, and less of them had surgical treatment.

After adjusting for age, race, ethnicity, cancer stage, treatment, and other variables, the lower-SES men were 1.5 times more likely than the higher SES men to have died over a median follow-up of 79 months.

Observations and comments

According to Dr. Riveros, the findings are consistent with evidence showing that social determinants of health — the conditions in places where people work and spend their lives — have broad impacts on cancer risk. “Many people in lower-SES areas have had poor diets since birth,” he says.

Lower-SES individuals may be limited in their ability to find, understand, or use health-related information, and therefore “might not know what advanced prostate cancer feels like, or when it’s time to go to a doctor,” Dr. Riveros says. He and his co-authors concluded that SES should be considered when implementing programs to improve the management of patients with early-onset prostate cancer.

“This paper underscores the importance of addressing issues related to diversity, equity, and inclusion when it comes to optimizing outcomes for men with prostate cancer,” says Dr. Marc B. Garnick, the Gorman Brothers Professor of Medicine at Harvard Medical School and Beth Israel Deaconess Medical Center.

Dr. Heidi Rayala, a urologist affiliated with Beth Israel Deaconess Medical Center in Boston, and a member of the Harvard Medical School Annual Report on Prostate Diseases editorial board, agrees, but adds that evaluating individual sociodemographic factors is challenging because many of them are coupled with disparities in insurance coverage. “What remains to be answered is whether there are unique underlying SES factors that would benefit from targeted cancer prevention strategies, or whether this all boils down to the 10% of the US population that remains uninsured,” she says.

About the Author

Charlie Schmidt, Editor, Harvard Medical School Annual Report on Prostate Diseases

Charlie Schmidt is an award-winning freelance science writer based in Portland, Maine. In addition to writing for Harvard Health Publishing, Charlie has written for Science magazine, the Journal of the National Cancer Institute, Environmental Health Perspectives, … See Full Bio View all posts by Charlie Schmidt

About the Reviewer

Marc B. Garnick, MD, Editor in Chief, Harvard Medical School Annual Report on Prostate Diseases; Editorial Advisory Board Member, Harvard Health Publishing

Dr. Marc B. Garnick is an internationally renowned expert in medical oncology and urologic cancer. A clinical professor of medicine at Harvard Medical School, he also maintains an active clinical practice at Beth Israel Deaconess Medical … See Full Bio View all posts by Marc B. Garnick, MD