Brain fog from long COVID affects millions, yet funding for research is uncertain. Understanding its causes and treatments is ...

You’re not alone. Brain fog—that frustrating state of mental cloudiness and confusion—can be influenced by many factors, but one of the biggest culprits is what you eat and drink.

What is brain fog? It’s that frustrating mental cloudiness that leaves you struggling to concentrate, remember details, or think clearly. While not a medical diagnosis itself, this cognitive ...