Raphaela O’Day is a senior performance coach and innovation catalyst at Johnson & Johnson Human Performance Institute. She applies her multidisciplinary experience spanning re...

Walter Ochieng is a surgeon and public health economist who works with the CDC’s Center for Global Health. Having worked in government, humanitarian, and nonprofit health serv...

Jay Olshansky is a professor at University of Illinois at Chicago’s School of Public Health and co-founder and chief scientist at Lapetus Solutions. The focus of his research...

Adaeze Oreh is a senior medical officer with the Nigerian Health Ministry, attached to the National Blood Transfusion Service. As a young doctor and new mother, she was diagno...