When you feel threatened, your body goes through a series of changes: chemicals like adrenaline and cortisol are released into your bloodstream, your blood vessels constrict, and blood is taken from areas like your digestive tract and redirected to muscles and limbs to prepare you for “fight or flight.”

These reactions are helpful in dangerous situations but can have harmful effects on your health if you experience them often over time. A new study shows that racist people’s bodies actually experience these changes when they encounter people of races that they view negatively, even under non-threatening, everyday conditions.
Think you’re safe? A study published last year suggests that we might all be more racist then we think. According to the study, between 75 and 80 percent of people had “non-overt” prejudices. Want to find out if you perceive yourself accurately? You can visit Harvard’s Project Implicit site to test your perceptions on everything form race , gender and age to obesity or religion.

The good news is that there’s a fairly simple solution: building friendships with people of other races seems to eliminate the unhealthy reactions.
Have kids? They’re watching you carefully as they develop their own attitudes about race.
To read more about why racism is bad for your health, visit Greater Good.
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