How long does it take to practice yin hands for 500 yuan? I have been practicing for 200 days. When I exercise my fingers, there will be cool wind blowing out, and when I exercise my whole hand, there will be hot air. Excuse me. It takes a lot of perseverance to practice this. Generally speaking, it takes about a year to stay around the clock. Super difficult. Remember it's best not to practice your hand, just practice your left hand. Don't touch people easily. Also, don't play yourself to death. You can't help but try with your index finger against your thick thigh. Modern people are doomed to find no achievement method, and can eat and practice hard. It is also a character. Remember not to spread it indiscriminately, which is harmful to virtue. Touch others at will, and the whole family will die. That's an old saying, believe it or not.