
Food, friends, and freedom—often called the three Fs—support horse health and help reduce anxiety. “It’s very clear that if we deprive them of any of these that it will affect them physically and psychologically,” says Katrina Merkies, PhD, a professor at the University of Guelph in Ontario, Canada. Merkies, who oversees a research program on equine behavior and welfare, emphasizes that unmanaged stress can quickly escalate into dangerous behavior. “It could start small … and work up to a spin, buck, or bolt,” she says. “Sometimes (it escalates) super–fast.”
What Is Equine Anxiety?
“The term anxiety is an umbrella term,” Merkies explains, referring to a horse’s emotional response to perceived threats in his environment. When a horse senses something bad might happen, it triggers a reaction—typically to flee or fight.
Horses show anxiety in a range of behaviors, she adds, from the obvious—bolting, freezing, restlessness, vocalizing, biting, or kicking—to more subtle signs. Others include head-raising, teeth grinding, licking and chewing, defecation, showing the whites of the eyes, tightening the lips, or turning the head away. Many of these can also indicate fear or other emotional responses.
Unchecked anxiety can lead to physical issues such as ulcers or behavioral problems, including stereotypies—repetitive behaviors that appear to have no purpose, such as pacing, weaving, cribbing, or running teeth along stall doors or walls. “The horse has to learn to cope with the stress somehow,” says Merkies, adding that once these habits take hold, they’re tough to break.
Spotting Anxiety in Your Horse
Understanding anxiety starts with looking beyond our assumptions. “The challenge of this is that we are human and can only recognize from our human perspective,” Merkies says. She urges owners to dig deeper and ask themselves, “Why is my horse doing this? What needs to change?” The causes can range from a poorly fitted saddle to a stressful living environment or an improper diet. If you need help pinpointing the cause of your horse’s stress, contact your veterinarian or an equine behaviorist.
Easing Anxiety Before It Escalates
Start with the three Fs and work from there. Know your horse’s thresholds and act before stress builds. “Think like a horse,” says Merkies. “Recognize their struggles and take the time to work with your horse to turn a struggle into a positive situation.”
She also cautions against overtraining. “Be really careful that training doesn’t take away the horse’s ability to protect themself,” Merkies says. If fear of the trainer outweighs fear of a stressor, horses might suppress their reactions—until they reach a breaking point. “We want them to tell us so we can fix those things.”
Ultimately, she adds, horse owners have a responsibility to be attuned to their horses, proactive, and work within the horse’s limits. “We are the guardians of these wonderful animals. It is incumbent for us to provide them with a good life.”
Take-Home Message
Understanding and managing anxiety in horses starts with recognizing both obvious and subtle signs of stress and considering why animals display stress behavior. Providing food, friends, and freedom, while staying attuned to your horse’s individual needs, helps prevent anxiety from escalating into serious behavioral or health issues. Always aim to create a positive, supportive environment where your horse feels safe to express discomfort. Thoughtful management and mindful training go a long way in building trust and improving the horse-human relationship.