In this week’s installment of Medical Discovery News, UTMB’s Norbert Herzog and David Niesel discuss benign paroxysmal positional vertigo. “While it’s happening, you don’t know up from down or left from right. These brief episodes of dizziness can be mild or intense. And they’re triggered by changes in the position of your head. So, moving your head up or down or suddenly rising from or turning over in bed can cause you to feel like the room is spinning. Fortunately, the symptoms usually last less than a minute but it’s possible the effect can linger, making you unsteady.” MDN airs locally at 10 a.m. every Saturday on KUHF-FM.