Cortisol

New research is uncovering the particularly damaging health effects of experiencing racial discrimination in childhood—and showing just how long those effects can last.

• By Olivia Campbell

New research suggests too much cortisol and testosterone are bad for the economy.

• By Nathan Collins

New research finds acceptance of moment-to-moment thoughts and feelings can greatly reduce the impact of stress on your health.

• By Tom Jacobs

Our bodies naturally create hundreds of hormones that are key to determining our athletic abilities. But the introduction of unnatural hormones raises important questions about how we define sex and gender.

• By Leslie Henderson