When working with animals can hurt your mental health. While it might sound like fun to work around pets every day, veterinarians and people who volunteer at animal shelters face particular stressors that can place them at risk for depression, anxiety and even suicide. Source 5q.
I honestly thought this was going to be the opposite kind of post. But I guess in those fields of work, always dealing with hurt animals and death, I guess I could see the strain on the mental health.