This boils down to nothing more than superstition. Avoid.
Anyone who purchases Sexual Reflexology: Activating the Taoist Points of Love as a guide to sex will find that it certainly is that and more. As a manifestation of love, the book includes information on increasing sexual pleasure with exercise, knowledge, and even meditation. Straightforward and, at the same time, poetic, this book is an aid for couples who want to maximize their pleasure beyond the Puritan
sex and love cycle that western society teaches-or, rather, doesn't usually bother to teach.
Complete with diagrams intended to educate-- not titillate, the book uses easily understood language that is poetic at times. It even includes a Special Note for Women Readers. This is a book that may not make best seller lists but certainly should.