Cooler Heads is filling a gap that our founder painfully lived through in 2016. When our CEO and founder, Kate Dilligan, was diagnosed with breast cancer, she was suddenly pushed into a world of treatment decisions, side effects, and uncertainty. Like many patients, she focused on survival. But she also experienced firsthand how chemotherapy impacts not just the body, but identity, confidence, and daily life. Hair loss during chemotherapy is often described as a side effect.