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
Human embryos formed with in vitro fertilisation can develop genetic abnormalities in the time between genetic testing and implantation – though this may not affect their viability
New research tapping into decades-old concepts is challenging the notion that the only way to treat cancer is to kill every last cancer cell. Instead, scientists suggest, we could try a little persuasion
Losing a tooth as an adult is par for the course for many of us. The only option to replace them? Artificial substitutes. But an era of regrowing living teeth may now be almost upon us
In human beings, egg cells need to survive for about five decades, much longer than most other cell types – and they may achieve this unusually long lifespan by slowing down their natural cell processes
