Only through transformation can we truly move from one stage of human development to a higher stage ... research studies are operating at stage 5. In stage 5, your sense of self is not tethered ...

Freud himself had a go, with his famous five stages of human development. In the modern era, though, we can look to alternative models (that are slightly less fixated on sex), including one laid ...

"The Sozen and Smith groups have achieved a milestone in developing in vitro models to study the earliest stages of human development that are unfeasible yet so important for understanding health ...

but it remained unclear whether this in vitro model could model later stages of human development. That is, until Brivanlou developed a platform to allow blastoids to attach in vitro, and thereby ...