Fit. Digging ears with head therapy is a craft, and there is no age limit. Both young people and middle-aged and elderly people can learn to dig their ears through head therapy to master this skill. With the improvement of living standards and the enhancement of people's health awareness, more and more people begin to pay attention to the health of their ears and heads, which proves that there is a great market for ear-digging industry, so 40-year-old is suitable for learning head therapy to dig ears.