What does "desensitizing" a horse involve?

Desensitizing a horse involves introducing them to various stimuli, such as loud noises, sights, and distractions, in a controlled and gradual manner. This process helps the horse become accustomed to potentially startling or bothersome elements in their environment, reducing their fear response and anxiety over time. By exposing horses to unfamiliar situations or objects, trainers can help them learn to remain calm and focused, which is essential for the safety and success of both the horse and rider in various scenarios, including competitions or trail rides.

The other options do not align with the primary goal of desensitization. Making them more eager to work focuses on motivation rather than comfort with their surroundings. Encouraging them to run faster does not relate to their emotional response to external stimuli. Teaching advanced tricks is more about skill development and does not necessarily involve helping the horse manage their reactions to new experiences.