New book Natural science Best Brain / David JP Phillips Shincho Shinsho
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Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
Natural science
Easily depressed. Full of stress. Poor in front of people, spinning around, low self-affirmation. Maybe it's because the balance of chemical substances in the brain is out of balance. If you decide on 6 combinations of dopamine, oxytocin, serotonin, cortisol, testosterone and endorphins. More than 100 million videos will be played. Thousands of world-class communication experts will teach you "brain optimization" techniques and recipes that make life a little easier.