Nathaniel Brooks Horwitz is an Australian-American activist and healthcare entrepreneur. He is president and co-founder of the Massachusetts-based education nonprofit Mayday Health. He has co-founded four biotechnology startups developing new medicines and served on the board of directors for eleven companies. His work has been featured in The New York Times, The Washington Post, The Boston Globe, The Atlantic and other publications. He graduated from Harvard with a degree in molecular biology and scored a total of one touchdown as a running back at Martha’s Vineyard Regional High School.