@CNN: This woman doesn’t feel pain. And her gene mutation could help doctors develop new painkillers and anxiety treatments: https://t.co/hbSKcJ76T3 https://t.co/EnCmAgv698

@CNN: This woman doesn’t feel pain. And her gene mutation could help doctors develop new painkillers and anxiety treatments: https://t.co/hbSKcJ76T3 https://t.co/EnCmAgv698