Brain Teaser

Challenge Your Cognitive Know-How!

Staying Sharp

Published August 14, 2025

What substance released during exercise is called “Miracle-Gro for the brain?”

Serotonin

Dopamine

Brain-derived neurotrophic factor (BDNF)

Insulin-like growth factor one (IGF-1)

Brain-derived neurotrophic factor (BDNF) gets its fun nickname because it’s like a “fertilizer” for your brain — it can promote growth and help make your mind more resilient to stress and aging. Don’t worry. We promise it won’t make you sprout flowers out of your head.

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Brain Teaser

Challenge Your Cognitive Know-How!

What substance released during exercise is called “Miracle-Gro for the brain?”

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MS15

Brain Teaser

Challenge Your Cognitive Know-How!

What substance released during exercise is called “Miracle-Gro for the brain?”

AARP VALUE & MEMBER BENEFITS

Staying Sharp

AARP VALUE &
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