What is one sign of a healthy horse?

A clear and bright eye is a strong indicator of a healthy horse. This sign suggests that the horse is well-hydrated, free from illness, and in good overall condition. Bright eyes reflect vitality and alertness, which are crucial for the horse's ability to interact with its environment and respond to stimuli. In contrast, a dull or sunken eye can indicate potential issues such as dehydration, pain, or illness. Therefore, observing the condition of a horse's eyes can provide valuable insights into its health status.