Sigmund Freud developed a five-stage model of human development, each stage with its own characteristics and challenges. Not only was this a useful way of viewing our growth, but he believed that ...

Children reach developmental milestones in how they play, move, talk, and act. The predicted ages for the milestones can be helpful in planning for parents. The motor milestone for babies being able ...

Scientists have created a stem cell-derived model of the human embryo in the lab by reprogramming human stem cells. The breakthrough could help research into genetic disorders and in understanding why ...

Sigmund Freud's account of oral, anal, and genital stages of development were suffused with emotion, but recent accounts of development have tended to neglect emotions. An exception, not so recent, ...

There are four stages of startup development as their IT infrastructure matures. Consider the first phase, which is generally thought of as the foundation stage: This is when the startup needs to ...

The earliest days after fertilization, once a sperm cell meets an egg, are shrouded in scientific mystery. The process of how a humble single cell becomes an organism fascinates scientists across ...