Ghana, eighteenth century: two half sisters are born into different villages, each unaware of the other. One will marry an Englishman and lead a life of comfort in the palatial rooms of the Cape Coast Castle. The other will be...

Gifty is a sixth-year PhD candidate in neuroscience at the Stanford University School of Medicine studying reward-seeking behavior in mice and the neural circuits of depression and addiction. Her brother, Nana, was a gifted high school athlete who died of...