All relationships change the brain - but most important are the intimate bonds that foster or fail us, altering the delicate circuits that shape memories, emotions and that ultimate souvenir, the self.

And you altered things about yourself.

Brain scans show synchrony between the brains of mother and child; but what they can't show is the internal bond that belongs to neither alone, a fusion in which the self feels so permeable it doesn't matter whose body is whose.

Hurricane season brings a humbling reminder that, despite our technologies, most of nature remains unpredictable.

We humans are different - our brains are built not to fix memories in stone but rather to transform them, our recollections in their retelling.

One of our duties on this planet is to dissolve the negative emotions associated with negative memories while we motivate ourselves and other people.