They are understanding of your frailties and supportive of your efforts. They are the reason and the reward for your hard work. They are your happiness and your home. Care for your health. That's how he loves himself.
Balance is important.
Too much of a good thing is still too much. And more often than not, when we have too much of something, our health suffers. Get enough sleep. Lack of sleep causes tension, crankiness, absentmindedness, and poor performance. Eat the right food.