Dogs Can Help Us Feel Less Pain

By Pat Anson

If you’re a dog lover like me, you know how beneficial a pet dog can be. Dogs give us unconditional love and companionship, and help us reduce stress, stay active and be socially connected.

What you may not know is that our four-legged friends can also help us feel less pain. In fact, according to a new study, they’re better at it than humans.

A team of European researchers conducted an unusual experiment to see if people experience less pain when their dog was nearby or when they were with a close friend.

They recruited 124 healthy female pet owners to immerse their hands in cold water (about 36°F) for up to five minutes to induce pain. The so-called “cold pressor task” is a common way for researchers to induce acute pain in clinical studies.

For this study, the cold water test was performed in a laboratory while the participants had either their pet dog or a same-sex friend nearby. Some of the women took the test while alone and served as a control group. The interaction of the participants, dogs, and their friends was monitored by video camera.   

The study findings, recently published in the journal Acta Psychologica, suggest that dogs can help people cope with painful situations better than humans can.

“Participants reported and showed less pain and they felt less helpless in the dog condition compared to the alone condition,” wrote lead researcher Heidi Mauersberger, a Research Assistant in the Department of Psychology at Humboldt University in Berlin.

“Participants accompanied by their dog reported less pain and showed lower physiological pain reactions, greater pain tolerance, and less intense facial displays of pain as well as felt less helpless than participants…accompanied by their friends.”

Being with a friend was better than being alone, but Mauersberger says the presence of another human being -- even a close friend -- made the women feel like they were being judged or evaluated.

“In contrast to the presence of pet dogs, the mere presence of close friends may have triggered social demands and social-evaluative threat in the painful situation. In fact, the increased eye contact frequency between participants and friends compared to participants and dogs may be a reason for the heightened threat perceptions in the friend compared to the dog condition.”

To test their theory further, researchers conducted a second test, this time immersing the participants’ hands in cold water while they were with a complete stranger or a dog they were unfamiliar with.

The results were largely the same. The pet owners felt more comfortable and coped better with pain around dogs they had not bonded with. Individuals with positive attitudes about dogs experienced the most pain relief.

“Participants demonstrated better adaptation to pain, exhibited less pain behavior, reported reduced helplessness and higher self-efficacy as well as experienced more positive affect when suffering pain in the presence of unfamiliar dogs compared to the presence of unfamiliar human companions,” said Mauersberger.

To be clear, this experiment wasn’t designed to come up with another wacky treatment for chronic pain. People with chronic pain or taking prescription medication were excluded from the study.

The research was conducted to help demonstrate the value of therapy dogs, which have long been known to provide psychological benefits to people suffering from stress, anxiety or loneliness.

A 2020 study helped explain how that happens. People being treated for fibromyalgia who interacted with a therapy dog had a significant increase in levels of oxytocin – a hormone released by the pituitary gland that’s known as the “cuddle hormone” or “love hormone.” They were also more relaxed, their heart rates slowed, and they had more positive thoughts and feelings.  

Do you have a dog, cat or pet of any kind that helps you feel better? 

Therapy Dogs Give Relief to Fibromyalgia Patients

By Pat Anson, PNN Editor

It’s well-known that having a pet or support animal can provide significant psychological benefits to people suffering from stress, anxiety or loneliness. A new study at the Mayo Clinic suggests that pet therapy can also help people with fibromyalgia.

To gain a better understanding of the physiological and emotional benefits of pet therapy, researchers monitored the hormones, heart rate, temperature and pain levels of 221 patients enrolled in the Mayo Clinic Fibromyalgia Treatment Program. Half of the participants spent 20 minutes interacting with a therapy dog and its handler, while the other half served as a control group, spending the same amount of time with the handler only.

The research findings, recently published in Mayo Clinic Proceedings, are striking. People who interacted with a therapy dog had a statistically significant increase in levels of salivary oxytocin – a hormone released by the pituitary gland that is known as the “cuddle hormone” or “love hormone.”

They were also more relaxed, their heart rates decreased, and they reported more positive feelings and fewer negative ones compared to the control group. Over 80% agreed or strongly agreed that animal therapy was helpful to them.  

Pain levels declined in both groups, but there was a larger decrease in those who interacted with the therapy dogs. On average, severe pain scores in that group dropped to more moderate levels.

“Given that individuals with FM (fibromyalgia) suffer pain chronically, this reduction, even if numerically minimal, could help to provide symptomatic relief and quality of life improvement,” researchers concluded. “Overall, the study showed that a 20-minute human-animal interaction (treatment group) as well as a human-human interaction (control group) could improve the emotional and physiological state of patients with FM; however, those who interacted with a therapy dog showed a more robust improvement.”

Fibromyalgia is a poorly understood disorder characterized by widespread body pain, fatigue, poor sleep, anxiety and depression. Its cause is unknown and many treatments prove ineffective. 

Therapy Dogs Calmer

The Mayo Clinic study was unique in another way – because researchers monitored and collected saliva from the dogs to see how they responded to the therapy sessions. Although therapy dogs are used in a wide variety of clinical settings, little is known about the impact of therapy sessions on the emotional state of the dogs.

Researchers say the 19 dogs involved in the fibromyalgia study -- all members of the Mayo Clinic Caring Canines program – did not show signs of stress, appeared to be more relaxed, and had significantly lower heart rates at the end of the sessions, a sign that they enjoyed interacting with patients.

"We need to expand our understanding of how animal-assisted activity impacts therapy dog's well-being, and this sizeable study with 19 dogs of various breeds provided solid evidence that animal-assisted activity done in the right condition does not have negative impacts on well-trained therapy dogs," said François Martin, PhD, a researcher for Purina, which sponsored the study.

"This only encourages us to do more research to continue to demonstrate the power of the human-animal bond on people while ensuring assistance animals also experience positive wellness as a result of their work."

You don’t need a trained therapy dog to enjoy the benefits of having a pet. A recent survey of older adults found that dogs, cats and other pets help their owners enjoy life, reduce stress, keep them physically active, and take their minds off pain.