HealthA fascinatingly grisly guide to replacing and repairing body parts Mary Roach's new book Replaceable You explores what we do when bits of our bodies break down or need switching out. It makes for a brilliant read – just beware the gory details, warns Carissa WongCulture
LifeThis book is a great insight into the new science of microchimerism Lise Barnéoud's Hidden Guests shows how this fascinating new field brings with it profound implications for medicine, and even what it means to be human, finds Helen Thomson Culture