Maybe you're frustrated that you forgot to pack yourself lunch for the third time this week, or you're spacing out while catching up with a friend over coffee, or finding it just straight-up impossible to concentrate on work. We've all felt a bit off at least once in our lives, as if we're looking at the world through frosted glass. The Internet loves to call that feeling "brain fog," and it's usually (thankfully) temporary. But what is it?
Brain fog isn't really a medical term, which makes it that much harder to pin down what's going on when it's not so temporary — and it turns out there's a lot that could be going on.
In general, the symptoms of brain fog include forgetfulness, slowed thinking, and trouble concentrating. The good news is that the most common causes of that foggy feeling aren't a sign of something scary going on. These causes include not getting enough sleep, waiting too long between meals, and stress (of course). In these cases, the fog tends to clear after you address the underlying cause, meaning your quick thinking will return once you finally get your eight hours of sleep or call off your juice cleanse.