Pets can be hard to keep healthy. You need to give them an environment that nurtures their health and well being. How can we attain this state?
Nutrition, exercise, reproduction, interaction are just a few things that pets need. In fact, they are pretty much the same as us humans. They need their needs met and if they do not, their health deteriorated. Indeed, depression sinks in and that leads to a loss in appetite, will, activity.
So, to keep your pet happy and healthy, make sure that you feed it well, exercise it, give it the attention it needs. Only then will you be able to have a pet that is well. It may even teach you a thing or two about taking care of yourself!