Why does brain fog make it hard to focus or think clearly?

Short answer
Brain fog affects processing speed and attention.

What’s usually happening
Mental fatigue reduces how efficiently the brain handles information.

What this is usually not

• low intelligence

• loss of ability

Common reasons

• prolonged focus

• decision fatigue

• information overload

What usually helps

• mental breaks

• reducing inputs

• rest

When to pay attention
If difficulty focusing interferes with daily functioning.

If your brain fog feels different, return to main brain fog page.