Psychology

Exercise boosts the brain — and mental health
The science of habits
How college in prison is leading professors to rethink how they teach
Good and bad memories are stored in different neurons, study finds
New “risky” playground could make kids anti-fragile
“Laughing gas” may offer quick, long-lasting relief from depression
“Freakonomics” study offers simple strategy for making tough decisions
The missing apex of Maslow’s hierarchy could save us all
Withdrawal symptoms from antidepressants can last over a year
Three reasons “you” won’t return after this life