The Brain's Secret Superpower: Neurogenesis & Lifelong Renewal
- nivsdhadphale
- Mar 23
- 3 min read
Updated: May 31
For years, scientists believed that once we became adults, our brains stopped growing new cells. They thought we were born with a set number of neurons, and as we aged, those cells would gradually die off. This could lead to memory loss and a decline in mental sharpness. But exciting new research has proven otherwise. Scientists have discovered that certain parts of the brain, especially the hippocampus which is the area responsible for memory and learning can continue to grow new brain cells throughout our lives. This process is called neurogenesis, and it’s one of the brain’s most remarkable abilities.
What Is Neurogenesis?
Neurogenesis is the creation of new neurons (brain cells). While it happens rapidly during early development, we now know that it continues in adults, mainly in the hippocampus. This area plays a huge role in forming memories, learning new information, and managing emotions. The fact that it can generate new neurons gives us hope for keeping our brains healthy and sharp as we age.
Why Does It Matter?
Understanding neurogenesis changes how we think about aging, mental health, and brain injury. If we can encourage the brain to grow new cells, we may be able to improve memory, learning, and even emotional resilience. Research has linked neurogenesis to lower risks of depression, anxiety, and neurodegenerative diseases like Alzheimer’s.
How Can We Boost Neurogenesis?
The good news is there are things you can do every day to support your brain’s ability to rebuild itself.
1. Exercise Regularly
Aerobic exercise like walking, running, or swimming increases blood flow to the brain and stimulates the growth of new neurons. Even 30 minutes a day can make a difference.
2. Get Enough Restful Sleep
During deep sleep, the brain repairs itself and clears away toxins. Quality sleep helps support neurogenesis.
3. Eat for Brain Health
Omega-3 fatty acids are essential for neurogenesis, especially DHA (docosahexaenoic acid). While many people get theirs from fatty fish such as salmon, vegetarians and vegans can turn to algal oil supplements, a plant-based source of DHA and EPA. Foods like flaxseeds, chia seeds, walnuts, and hemp seeds also provide omega-3s in the form of ALA (alpha-linolenic acid), which the body can partially convert into DHA and EPA.
4. Keep Learning
Challenging your brain with new skills, languages, or hobbies helps keep it active and encourages the growth of new neurons.
5. Reduce Stress
Chronic stress can slow neurogenesis. Mindfulness, meditation, and time in nature can lower stress and support brain health.
The Future of Brain Health
The discovery of neurogenesis is a game changer. It offers hope for treating brain injuries, neurodegenerative diseases, and mental health conditions. Scientists are now exploring how to harness this superpower to help people live healthier, sharper lives at any age.
Final Thoughts
Your brain is not fixed. It’s dynamic, adaptable, and capable of remarkable regeneration. By taking care of it, you can encourage lifelong learning, improve memory, and boost your mental wellbeing - thanks to the brain’s secret superpower: neurogenesis.
NivsD (23rd March 2025)
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Further Reading
Spalding, K. L., et al. (2013). Dynamics of Hippocampal Neurogenesis in Adult Humans. Cell, 153(6), 1219–1227. https://doi.org/10.1016/j.cell.2013.05.002
Harvard Health Publishing. (2023). Can you grow new brain cells?
Sahay, A., et al. (2011). Neurogenesis and depression: A link between hippocampal neurogenesis and mood disorders.Cell.
Erickson, K. I., et al. (2011). Exercise training increases size of hippocampus and improves memory. PNAS.
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