What does it mean to be healthier when you are hungry?

"More like a tiger, hungrier and healthier" is the description of European calligraphy in the Qing Dynasty's Bao Yi Zhou Shuang Gu. Tigers are generally lazy when they are full, most vigorous when they are hungry, and will hunt with the fiercest attitude. Because European characters are famous for their bold, slender fonts and tough strokes, they have their own meaning of attracting others, and they are described as tigers with thin strokes, so they are hungry. The thinner, the more energetic.