For Bridget Reeves, ringing the bell after completing six months of chemotherapy for breast cancer was “a big deal.”

Soldiering through nausea, exhaustion and nerve damage, she’d juggled chemo and her job as an MD Anderson clinical studies coordinator for 13 weeks before finally taking leave when she could no longer feel her foot on the brake pedal driving home.

Even through the worst of it, the sound of other patients ringing...