This is because handstand helps to improve people's intelligence and reaction ability. People's intelligence level and reaction ability are determined by the brain, and handstand can increase the blood supply of the brain and the sense of superiority under conditions.

For example, in some primary schools in Japan, in order to improve students' intelligence, students are asked to stand upside down for five minutes every day. After handstand, students generally feel refreshed and clear-headed. Because of this, medical experts attach great importance to handstand exercise: handstand for 5 minutes instead of sleeping for 2 hours. Other countries, such as India, Sweden and the United States, also actively advocate people to do handstands every day.

I hope I can help you!