The naked eye can barely spot the transparent nematodes at the center of PhD student Gurrein Madan’s neuroscience research. While C. elegans worms may initially seem an unassuming test subject for a graduate student who investigates the intricacies of gut-brain signaling, many of the genes found in C. elegans have counterparts in the human brain. Gurrein’s research could yield new insights into the gut-brain relationship, which may have practical health implications for humans. Gurrein works in the lab of Steven Flavell, the Lister Brothers Career Development Assistant Professor in the…