The book explores of bio­engi­neer­ing is allow­ing researchers to unlock untapped resilience in the human body and mind and even enhance human per­for­mance. This is nar­ra­tive-based sci­ence book, writ­ten in the style you might find in a Pop­u­lar Sci­ence or Dis­cov­er mag­a­zines (the author is a con­tribut­ing edi­tor at both). Each chap­ter tells the sto­ry of a patient or researcher whose expe­ri­ences or dis­cov­er­ies are chang­ing our under­stand­ing of how the human body and mind work and what we are capa­ble of. Char­ac­ters include a dou­ble amputee who has built bion­ic limbs that allow him to walk again, a blind woman who can ​“see” with her ears, sci­en­tists work­ing to devel­op a mem­o­ry pill, and the author him­self — who tries on a mus­cle suit, zaps his brain with elec­tric­i­ty, and reflects on the strug­gles due to Alzheimer’s faced by his own grand­fa­ther — an East­ern Euro­pean Jew who immi­grat­ed to the U.S. and rose to become one of the first Jew­ish sci­ence advi­sors to a U.S. President.