Despite an explosion of research on the use of brain scans and other tools of science to help better determine a person’s guilt or innocence, experts at a AAAS-organized discussion said hopes that neuroscience might transform the legal system are unrealistic for now.

One of the keys to aging in an emotionally healthy way is to let go of regrets about missed opportunities, a new study suggests.

For the young, regret might help them make better decisions in the future. But the likelihood of second chances decreases with age, and the benefit of ruminating upon those chances probably disappears.