As we move into an era of personalized medicine and advanced biometrics, the line between "physical health" and "mental health" will continue to blur until it disappears entirely. The best veterinarians of tomorrow will not just be doctors of the body; they will be readers of the soul.

Whether you are treating a stressed parrot pulling out its feathers, a horse refusing a fence, or a dog afraid of thunderstorms, remember this mantra: It’s not just behavior. It’s biology.

Practical changes include:

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