What is state of rest horse?

When a horse is in a state of rest, its body is relaxed and its heart rate and breathing are slowed. The horse may stand or lie down, and may close its eyes or rest them half-open. During rest, the horse's muscles are given a chance to recover and relax, and its digestive system can process food and nutrients more efficiently. Horses typically rest for several hours each day, alternating periods of activity and rest. A horse that is consistently restless or unable to rest may be experiencing stress or discomfort and should be evaluated by a veterinarian or equine behaviorist.