Introduction Have you ever felt mentally slow, unfocused, or unable to think clearly—even after enough sleep? This condition is commonly known as brain fog. While not a medical diagnosis, brain fog is a real and frustrating experience that affects productivity, memory, and mood. The good news is that brain fog is often reversible once you understand its root causes. What Is Brain Fog? Brain fog refers to a collection of cognitive symptoms that make it hard to think, concentrate, or remember things. It feels like your mind is “cloudy” or mentally exhausted. Brain fog can affect anyone—students, professionals, parents, and…