A stem cell therapy for stroke restored neuron function and revealed how transplanted cells navigate the nervous system.

Some parts of our bodies bounce back from injury in fairly short order. The outer protective layer of the eye-called the cornea-can heal from minor scratches within a single day. The brain is not one ...

The human brain has 86 billion neurons connected by roughly 100 trillion synapses, making it one of the most complex objects in the known universe. Each year neuroscientists make fascinating, ...