Which of the following actions is recommended for a horse with nervous system issues?

Reducing stimulation from noise and lights is recommended for a horse with nervous system issues because excessive environmental stimuli can exacerbate anxiety and stress in sensitive animals. Horses that struggle with nervous system disorders often react negatively to overwhelming situations, which can lead to increased anxiety, fear, and even potential behavioral issues. By minimizing exposure to loud noises and bright lights, you create a calmer environment that can help the horse feel more secure and less stressed, facilitating better management of their condition.

In contrast, increasing exercise might lead to overstimulation rather than providing relief, feeding high-energy foods can heighten anxiety levels, and introducing new horses can create stress and disrupt the established social order, all of which may not help a horse that is already dealing with nervous system challenges. Therefore, reducing external stimuli is a safe and effective strategy for helping such horses cope better.