UCLA scientist Steve Horvath has been awarded $2.3 million by the Open Philanthropy Project to pursue a series of experiments aimed at understanding why his epigenetic clock — an algorithm based on several hundred modifications of the human genome — accurately measures age and predicts lifespan.

Horvath shares the funding with two collaborators at the University of Washington and Public Health England. He is a professor of human genetics and biostatistics in the David Geffen School of Medicine at UCLA and Fielding School of Public Health.