Diseases & Conditions

Man's best friend — and medicine's too?

Dogs may one day help identify certain health conditions early.

For as long as dogs have been domesticated, humans have relied on them for companionship and their remarkable sense of smell. Dogs and their super sniffers help humans hunt; track criminals; and detect guns, drugs, or explosives in airports. Now scientists are investigating whether dogs can also help sniff out diseases before humans know they have them.

To continue reading this article, you must log in.

Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.

  • Research health conditions
  • Check your symptoms
  • Prepare for a doctor's visit or test
  • Find the best treatments and procedures for you
  • Explore options for better nutrition and exercise
Learn more about the many benefits and features of joining Harvard Health Online »

I'd like to receive access to Harvard Health Online for only $4.99 a month.

Sign Me Up

Already a member? Login ».

Disclaimer:

As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.

No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.

You might also be interested in…

Get Healthy, Get a Dog: The health benefits of canine companionship

Dog owners know that their furry friends offer unparalleled companionship. A growing body of research shows they also do much more. Owning a dog can prompt you to be more physically active—have leash, will walk.This Special Health Report, Get Healthy, Get a Dog: The health benefits of canine companionship, shows how having a dog can also reduce feelings of isolation and loneliness, help calm jagged nerves, and improve the lives of older individuals. Just petting a dog can lower the petter's blood pressure and heart rate (while having a positive effect on the dog as well).

Read More

Free Healthbeat Signup

Get the latest in health news delivered to your inbox!

Sign Up
Harvard Health Publishing Logo

Thanks for visiting. Don't miss your FREE gift.

The Best Diets for Cognitive Fitness, is yours absolutely FREE when you sign up to receive Health Alerts from Harvard Medical School

Sign up to get tips for living a healthy lifestyle, with ways to fight inflammation and improve cognitive health, plus the latest advances in preventative medicine, diet and exercise, pain relief, blood pressure and cholesterol management, and more.

Harvard Health Publishing Logo

Health Alerts from Harvard Medical School

Get helpful tips and guidance for everything from fighting inflammation to finding the best diets for weight loss...from exercises to build a stronger core to advice on treating cataracts. PLUS, the latest news on medical advances and breakthroughs from Harvard Medical School experts.

BONUS! Sign up now and
get a FREE copy of the
Best Diets for Cognitive Fitness

Harvard Health Publishing Logo

Stay on top of latest health news from Harvard Medical School.

Plus, get a FREE copy of the Best Diets for Cognitive Fitness.

Harvard Health Publishing Logo

Stay on top of latest health news from Harvard Medical School.

Plus, get a FREE copy of the Best Diets for Cognitive Fitness.