I can't say that I think negatively about self-help books. The books we read in this life benefit us in some way. The important thing is to know how to take advantage of it. I bought and read two books of the personal development book series of the American author, which I liked and read very much. He was telling the secrets of living stress-free in social life and his calm life down to the smallest details. What they said was fine. What they said were things that were completely proportional to the philosophy of the Far East. He was very young. Later I learned that he had a heart attack and died. It was very surprising for me. Physical health is just as important as mental health. That's why we should go to the doctor and do our check-ups without fail.