Epithelial cells form a layer in which an apical surface is exposed to the external environment and to other forms of stress in ducts in specialized organs. As such, epithelial cells require robust ...

Serotonin is a neurotransmitter and hormone that helps regulate mood, sleep, digestion, blood clotting, and sex drive. Your body makes it from tryptophan, an amino acid found in meat, dairy, eggs, and ...

On this episode of Studio 2, it’s the ultimate throwback summer: we’re bringing back some of our favorite memories from decades past. We’ll talk about the songs, snacks and hangouts that defined ...