biological stress a condition that imposes severe demands o...
vitamin deficiency lack of a vitamin needed for normal bodi...
ligand n. a molecule that binds to a specific site on anoth...
boredom n. a state of weariness or ennui resulting from a l...
humoral immunity see immune response.
Sorry, "disorders-of-initiating-and-maintaining-sleep-dims" is not in the Dictio...