UCSF scientists were pioneers in human embryonic stem cell research more than a decade ago. Today, despite years of political and funding challenges, the UCSF program is flourishing. Scientists are exploring the earliest days of human development, and what sometimes goes wrong. They are studying and seeking treatments for breast cancer and prostate cancer and brain tumors. They are seeking treatments for heart disease and diabetes and such neurological conditions as Parkinson’s disease. All of this is driven by curiosity and ingenuity and a passion to find cures.