Because according to common sense, training must be something specific, such as work skills, expertise, sports... with forms of movement. As for the brain or anything related to psychology, spirit, training is easily understood as cliché teachings. But a specific example of Eileen Gu, a famous athlete of winter sports, you will see what brain training is really like.
At the 2026 Winter Olympics, before a competition event, she received news of her loved one's death. Not only did she continue to compete, but Gu also achieved excellent results. As we often say, she has bravery and steel will. Or somewhere there is a perception of indifference. However, in reality, it is the result of the process of training the psychological control ability of a athlete who is only 22 years old. The professional term is called "neuroplastic". In more folksy terms, it is "exercising the brain" to control thoughts, emotions, and even control who she becomes.
The brain is the most "mysterious" part of the body, but science has also proven that it is completely trainable, as it also has "muscles". Bringing thoughts into a healthy (positive) or weak (negative) state depends on discipline or letting go in questioning yourself. Just this simple thing, if you always think you are incompetent, weak, the brain will remember and adjust so that you and your life are truly in that state. And vice versa.
What to do to train your brain? A simple tool is writing. When thoughts only circle in your head, they are easily exaggerated, but writing down on paper, you are forced to concretize. When words are clear, you have the opportunity to review instead of being dominated by them. That is how to reorganize thinking.
Just as the body needs to exercise for at least 30 minutes each day, the brain needs to "exercise" with thoughts, by keeping pace to recognize emotions before negative reactions occur.Of course, effectiveness is a long process, not a one-night stand.
Start now, so that at some point, you will realize that your reaction is different from the same situation.