The Brain Song Blog

Evidence-based articles on memory, focus, gamma brainwaves, BDNF, and cognitive aging. Reviewed by Dr. Sarah Whitfield, PhD.

BDNF Explained: The Brain's Fertilizer Protein

What BDNF is, why low BDNF is linked to memory loss, and the 5 evidence-based ways to support it naturally.

The biological causes of brain fog (rarely just "tired") and which interventions have actual evidence.

A grounded look at gamma brainwaves, what 40 Hz activity actually does, and where claims outrun the data.

Both alter brain state. Both reduce stress. But they work differently. A short comparison.

Spaced repetition, the method of loci, active recall, and combining them with audio entrainment.

Why most focus advice fails. The four interventions that genuinely shift attention.

Blueberries, fatty fish, leafy greens - what the actual research supports, and the marketing fluff to ignore.

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