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Brain fog & mood: where to start.

Foggy thinking, poor focus, low mood or anxiety that tracks with sleep and digestion. The brain is downstream of sleep, thyroid, inflammation, iron and the gut — and the order you check them matters.

Where should I start?

Three steps, in order.

1Check the four

Sleep, thyroid, inflammation, iron — in that order.

Read the order →
2Find the pattern

Fog vs low mood vs anxiety point to different first steps.

3Start here

Brain Fog Causes, Symptoms + Natural Treatments

Start here
The most useful reads

Read these first.

Expert interviews

From The Dr. Axe Show.

Watch more episodes →

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Brain Fog Causes, Symptoms + Natural Treatments

Start here
One practical tool

Vitamin Advisor

Brain, focus and mood as the goal; the nutrients, herbs and foods that fit.

Open the tool
Common questions

Straight answers.

Why do I have brain fog?

Sleep, thyroid, inflammation and iron explain most brain fog — check them in that order before reaching for nootropics.

Does creatine help the brain?

Modest but measurable effects on working memory in trials, strongest in people who eat little meat or are sleep-deprived.

Can the gut affect my mood?

Yes — the gut makes most of the body's serotonin precursors and sets inflammation, which the brain feels.

Visit preparation

Before a visit about brain fog or mood

Tick what you have; bring the rest. Print this page for the appointment.

Other concerns

Start somewhere else.