Use your fingertips.
Play marbles, etc. What is most needed is quick-breaking ability, which can cultivate "second intuition" to imagine the floating white clouds in the air into various images, which can improve the functions of logical thinking in the left brain and memory storage in the hippocampus, thus improving the concentration ability of thinking.
Hold chopsticks with your left hand.
Try for two days first, rest for one day in the middle, continue for two days, and stick to it for about a month.
Reading in the bookstore
Even if you are as busy as a bee, you should take time to visit the bookstore. Keep a close eye on the bibliography to infer what is written in the book.
Challenge the seemingly impossible.
Sometimes, inspiration will suddenly appear when you are cornered. It's really desperate. Don't be afraid of hard work, but be brave in challenges. Recalling the songs sung and games played in childhood and vividly describing the scene at that time are helpful to enhance the function of hippocampus, the source of memory.
In ancient China, the focus of health preservation was to rest the mind, which did not mean that the mind was absolutely quiet, otherwise the mind would decline and even lead to Alzheimer's Harmo's disease. Only by using God can your mind be full of vitality.