How zapping the brain can supercharge meditation

Life is not just a deluge of bad news. Every day, all sorts of wonderful things are happening. People fall in love. New vaccines are getting closer to saving the roughly 500,000 children who die from malaria each year. And for those of us interested in the science of meditation, which promises a deeper understanding of human psychology and the upper bounds of subjective well-being, the field is entering an incredibly exciting new era.

Research from the early 1990s helped establish the therapeutic potential of mindfulness...