Donald Trump appears drowsy for several minutes, visibly fighting sleep.

The medical term for this response is postprandial somnolence. Researchers do not fully understand exactly what causes postprandial somnolence. It may occur as a natural biological reaction to the ...

The scientific term for this slump is postprandial somnolence, but it's more commonly known as a 'food coma'. Humans have a long-standing tradition of eating to the point of drowsiness.

A 72-year-old woman with type 2 diabetes had somnolence after a urologic procedure for bladder cancer. She had respiratory acidosis and anion-gap metabolic acidosis. A diagnosis was made.