One of the most important things about self-care is that it improves our mental health. When we don't take proper care of ourselves, we're much more susceptible to feeling anxious, depressed, and out of control. When we feel out of control, there's a greater chance that we'll use harmful coping mechanisms to suppress our emotions.
It’s easy to get motivated by a fitness program, a new diet, or a motivational speech. The problem is that this motivation exists only in the intentional mind. It temporarily changes our intentions but fails to overcome the power of our habits. How many times have you rationalized skipping the gym, eating unhealthy food, or just reverting to your usual behaviors, only to later regret it?