"It's the core resource for regulating your own behavior," she said. "It's not like your psychological state or mood is separate."
"It's like working out in the gym," said Ms. Jha, the director of contemplative neuroscience for the University of Miami's Mindfulness Research and Practice Initiative. "Right now, the military has daily physical training. Every day, they get together and exercise. But the equivalent is not given to the mind. The more [these troops] practiced, the more they benefited."