Let’s say you’ve opened the refrigerator but forgot what you were going to grab. Or something important came up at a meeting, but you can’t recall the details. Perhaps you notice that it takes you ...

Excessive sleepiness means sleeping more than usual and still feeling drowsy most of the day. You may feel sleepy and fatigued for many reasons, including lifestyle habits, weather changes, side ...

Susan Russell, MD, is a board-certified pulmonologist and Medical Director of Medical Intensive Care Unit (MICU) for Northwestern Memorial Hospital's Medical ICU. Muscle strain commonly causes chest ...