In a new study, researchers discovered that the human brain has four pivotal periods when it goes through marked changes, sparking five "epochs" that last for years. The adolescent phase, for example, ...

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, ...

Rachael Seidler receives funding from NASA. Tianyi Wang received funding from NASA. The extent of these changes was greater for those who spent longer in space. As NASA plans longer space missions, ...