What makes a so-called perfect body? For anatomist Alice Roberts, a medical doctor and writer, the vision of human perfection had nothing to do with modern standards of fitness and beauty.

In the slow-wave sleep stage, the brain doesn’t receive motoric or sensory input from the body or the environment, nor does it simulate sensory experiences such as happens with dreams in REM sleep.

Science writing, he realized, was the best job in the world -- it let him tell stories about space, the planet, climate change and the people working at the frontiers of human knowledge. He also ...

Science news this week: ... With that in mind, here are 10 of the human body's seemingly useless parts, some of which remain controversial. Related: How many organs are in the human body? 1.

Science Pushing The Limits Of The Human Body. Humanity has toppled scores of world records over the past few decades, but how much more progress can we make? Published Aug 12, 2014 8:51 PM EDT.

An ambitious project launched in 2016 has made a dent in one of biology’s greatest challenges — with more than 3,600 researchers profiling more than 100 million cells.

An ambitious project launched in 2016 has made a dent in one of biology’s greatest challenges — with more than 3,600 researchers profiling more than 100 million cells.