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How Pets Help Reduce Stress and Anxiety: The Science of Animal Therapy

The Science of Animal Therapy: Cat being stroked by human.

In a world where stress and anxiety have become increasingly common, many are turning to unconventional yet scientifically backed solutions. One such remedy is animal therapy, a practice that harnesses the emotional connection between humans and animals to promote psychological and physiological healing. From therapy dogs in hospitals to emotional support cats in homes, animals are proving to be powerful allies in mental wellness.

What Is Animal Therapy?

Animal therapy, also known as pet therapy or animal-assisted therapy (AAT), involves guided interactions between a person and a trained animal. The purpose is to help improve a person’s emotional, cognitive, or physical functioning. These sessions are often supervised by therapists or medical professionals, depending on the treatment goals.

While dogs and cats are the most common participants, other animals like horses (equine therapy), rabbits, and even birds can also be used in various therapeutic settings.

How Animal Therapy Reduces Stress and Anxiety

One of the core benefits of animal therapy is its ability to lower stress levels and reduce symptoms of anxiety. Here’s how it works:

1. Triggers the Release of “Feel-Good” Hormones

When interacting with pets, the human brain releases oxytocin, a hormone associated with bonding and stress relief. Simultaneously, levels of cortisol—the hormone linked to stress—decrease. According to a study published in Frontiers in Psychology, just 10 minutes of petting a dog or cat can significantly reduce cortisol levels.

2. Promotes Physical Relaxation

Spending time with animals can lead to lower blood pressure and heart rate. These physiological responses are tied to reduced stress and a general sense of calm. The American Heart Association has recognized that pet ownership is linked to lower cardiovascular risk, partly due to this relaxing effect.

3. Provides Companionship and Emotional Support

Loneliness is a common contributor to anxiety, especially among individuals who live alone or experience social isolation. Pets offer unconditional love and companionship, which helps fill emotional gaps. Emotional support animals (ESAs), though not the same as service animals, are legally recognized for their role in helping individuals with psychological conditions.

Types of Animal Therapy and How They Work

Animal-Assisted Therapy (AAT)

This is the most structured form of animal therapy and is often part of a broader therapeutic plan. Certified therapy animals are brought into hospitals, nursing homes, and schools to assist patients under professional supervision.

Emotional Support Animals (ESAs)

While ESAs don’t undergo the rigorous training required for service animals, they play a critical role in helping people with anxiety, PTSD, and depression. Their presence alone provides comfort and emotional stability.

Equine Therapy

Also known as horse therapy, this type is often used in treating individuals with PTSD, anxiety, and developmental disorders. Activities such as grooming and riding horses help improve self-esteem and emotional regulation.

Who Can Benefit from Animal Therapy?

Animal therapy is versatile and beneficial across a wide range of demographics:

  • Children with Autism: Helps improve social interaction and reduce behavioral issues.

  • Elderly Individuals: Reduces loneliness, improves mood, and even enhances memory recall.

  • Veterans with PTSD: Provides a sense of safety, reduces hypervigilance, and improves emotional resilience.

  • Students and Professionals: Therapy dog programs on campuses and in offices help reduce academic and work-related stress.

Incorporating Pets Into Daily Life for Mental Health

Even without formal therapy, the presence of a pet can make a noticeable difference in one’s mental well-being. Here are some ways pets can help:

  • Routine and Responsibility: Taking care of a pet gives a sense of purpose and structure, which can be grounding during anxious periods.

  • Mindfulness and Presence: Pets live in the moment, and spending time with them encourages mindfulness—an effective strategy for managing anxiety.

  • Physical Activity: Walking a dog or playing with a cat increases physical movement, which is known to boost mood and decrease stress hormones.

Is Animal Therapy Right for You?

While animal therapy offers numerous benefits, it’s not a one-size-fits-all solution. Individuals with allergies, phobias, or limited mobility may need to explore alternative therapeutic options. However, for those who respond well to animals, it can be a valuable and accessible tool in the fight against stress and anxiety.

The Science of Animal Therapy: Dog being petted by human.

Conclusion

Animal therapy offers a compelling, evidence-based approach to reducing stress and anxiety. Through hormonal changes, emotional bonding, and physiological effects, pets provide far more than companionship—they serve as catalysts for mental wellness. Whether through formal sessions or everyday interactions, the presence of animals in our lives can offer profound healing benefits.

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Can Pets Recognize Themselves in Mirrors? The Science Behind Self-Awareness

Cat looking at itself in mirror at the back of a comb.

Do animals have self-awareness? Self-awareness is a cognitive ability that allows an individual to recognize itself as separate from others and the environment. One widely used method to assess this ability is the mirror test, first developed by psychologist Gordon Gallup Jr. in 1970. This test has been instrumental in determining whether animals can recognize their own reflection.

But can pets such as dogs and cats pass this test? Let’s explore the science behind self-awareness in animals and what it tells us about our furry companions.

The Mirror Test and How It Works

The mirror test is a behavioral experiment designed to measure an animal’s self-recognition ability. Here’s how it typically works:

  1. A mark is placed on an animal’s body in a location it cannot see without a mirror.

  2. The animal is given access to a mirror.

  3. If the animal touches or investigates the mark on its own body after looking in the mirror, it is considered to have passed the test.

Which Animals Pass the Mirror Test?

Species that have successfully passed the mirror test include:

  • Great apes (chimpanzees, orangutans, bonobos)

  • Bottlenose dolphins

  • Elephants

  • Magpies

However, most domesticated pets, such as dogs and cats, do not pass the mirror test. Does this mean they lack self-awareness? Not necessarily.

Do Dogs Recognize Themselves in Mirrors?

Dogs typically fail the mirror test because they rely more on smell than vision to perceive the world. Instead of recognizing their reflection visually, they use scent-based self-recognition.

A study by Dr. Alexandra Horowitz, a leading canine cognition researcher, introduced the sniff test of self-recognition (STSR). The experiment found that dogs are more interested in sniffing modified versions of their own scent than unfamiliar scents. This suggests that dogs may have a form of self-awareness, but it is based on smell rather than sight.

How Dogs React to Mirrors

When dogs see a mirror for the first time, they often:

  • Show initial curiosity, trying to interact with their reflection.

  • Lose interest quickly once they realize the reflection does not have a scent.

  • Display no long-term signs of recognizing the reflection as “self.”

This behavior indicates that mirrors do not provide useful information for dogs, but they may still have self-awareness through other senses.

Can Cats Recognize Themselves?

Like dogs, cats also fail the mirror test. Most cats:

  • Initially show curiosity by pawing at or reacting to their reflection.

  • Eventually lose interest and ignore mirrors altogether.

  • Do not display behaviors indicating self-recognition, such as inspecting a mark on their body.

However, cats do show signs of individual self-awareness through scent marking and territory recognition. They use pheromones to distinguish between familiar and unfamiliar objects, much like dogs use scent-based recognition.

 


Alternative Forms of Self-Awareness in Pets

Even though most pets fail the mirror test, this does not mean they lack self-awareness. Many researchers argue that self-recognition might manifest in different ways depending on the species.

1. Scent-Based Recognition

Both dogs and cats rely on their sense of smell more than vision. Dogs use urine marking and sniff tests to differentiate between self and others. Cats also use scent marking by rubbing their faces on objects to claim territory.

2. Social Recognition

Dogs and cats can distinguish their owners and other familiar individuals. Studies show that dogs can recognize their owners’ faces and voices, displaying strong emotional bonds.

3. Body Awareness

Some studies suggest dogs have body awareness. In an experiment, dogs were placed on a mat with an attached object. They had to pick up the object and hand it to their owner. When the object was attached to the mat, dogs moved off the mat before lifting the object, suggesting they understood their body was an obstacle.


 

Pet Intelligence & Self-Awareness in Animals

Self-awareness is only one aspect of intelligence. Even though dogs and cats fail the mirror test, they demonstrate other cognitive skills, including:

  • Problem-solving abilities

  • Emotional intelligence

  • Memory recall

  • Complex social behaviors

These abilities indicate that pets experience a form of self-awareness that goes beyond mirror recognition.

Do animals have self-awareness?: Dog running from the view of a car's side mirror.

Conclusion

So, do animals have self-awareness? While self-awareness in animals is often measured using the mirror test, many species—including dogs and cats—fail this test due to their reliance on non-visual senses. Instead, they demonstrate self-awareness through:

  • Scent-based recognition (dogs and cats)

  • Social recognition (identifying owners and familiar animals)

  • Body awareness (understanding their own movement in space)

These findings suggest that the concept of self-awareness is more complex than the mirror test alone can measure. Our pets may not recognize themselves in mirrors, but they certainly possess unique forms of intelligence and self-awareness that make them extraordinary companions.

References

Mirror Test – https://pmc.ncbi.nlm.nih.gov/articles/PMC10587091/

Dogs Recognize Themselves in Test Based on Smell, Not Sight – https://www.nytimes.com/2017/09/22/science/dogs-smell-recognition.html

Why Do Cats Scent Mark? Understanding the Behaviour – https://www.lifewithcats.tv/cat-scent-marking/

Body size awareness matters when dogs decide whether to detour an obstacle or opt for a shortcut – https://pmc.ncbi.nlm.nih.gov/articles/PMC10587091/