Many years ago, Dr. Stephen Hauser and his research team discovered how B cells were crucial to the damage caused by MS. They developed new treatments, including one medicine that is literally saving the life of someone I love dearly. (If you need hope here, read his amazing book.) I met Dr. Hauser a few days ago at a charity dinner in San Francisco, where he spoke about the breakthrough. I got to thank him for this miracle of science, while trying not to cry.