Brain-Derived Neurotrophic Factor (BDNF)
A key protein for neuroplasticity, often called 'fertilizer for the brain' — and a major lever in modern mental wellness research.
- • BDNF supports the brain's capacity to grow and adapt.
- • Exercise, sleep, and ketamine all raise it.
- • Chronic stress and depression lower it.
What it is
BDNF is a protein that supports neuron survival, dendritic branching, and synapse formation. It is one of the most studied molecules in neuroplasticity research.
What raises it
Aerobic exercise, sleep, learning, certain antidepressants, and ketamine acutely increase BDNF expression and release.
What lowers it
Chronic stress, poor sleep, sedentary lifestyle, and depression are associated with reduced BDNF signaling.
Practical implication
Many of the most effective non-pharmacological supports for mental wellness — exercise, sleep, learning — converge on raising BDNF activity.
Educational only. Not medical advice. Discuss treatment decisions with a qualified clinician.
Independent publisher and editor of Ketalux, based in Chicago, Illinois. Ira commissions, edits, and reviews every article on the site and believes ketamine therapy — used responsibly — offers real hope for people living with depression, anxiety, PTSD, and chronic pain. Contact: ira@idigits.com.
Educational use only. The content on this page is provided for general educational purposes and does not constitute medical advice, diagnosis, or treatment. Ketamine and related therapies carry risks and are appropriate only under qualified medical supervision. Always consult a licensed healthcare professional about your individual situation. Information may change as research evolves.