Does aku preashare work?

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One my callige brought a book yesteday named aku preasure a medical science. i found very curious about that. a picture was attached with the book showing some points in both hand and leg. the are telling that to cure your specific area of your body you must press the specific points. i didnt understand the most of it but i feel very curious about that. can you please untie the knot for me and tell me usefulness of it.