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Neuroscientist debunks the myth that adults cannot regenerate brain cells, shares best exercise to boost it

We have often been taught that adults cannot grow back lost brain cells. Neuroscientist Robert Love is debunking that myth. 

Published on: Sep 09, 2025 10:01 AM IST
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For years, most of us were taught in school that the brain cannot grow new cells once they are lost. But modern neuroscience is rewriting that narrative. Research now shows that adults can, in fact, regenerate neurons - a process vital for memory and long-term brain health.

Brain cells can be regenerated and a chemical released during resistance training promotes neuron growth. (Unsplash)
Brain cells can be regenerated and a chemical released during resistance training promotes neuron growth. (Unsplash)

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Robert Love, a neuroscientist specializing in Alzheimer’s prevention, explains that adults are capable of regenerating brain cells - overturning long-held beliefs to the contrary. In an Instagram video posted on September 8, he highlights the role of a key chemical released during resistance training, which not only promotes brain cell growth but also supports overall cognitive health and healthy aging.

Can adults grow brain cells?

Robert claims that contrary to what we learnt in school, the fact that we cannot grow brain cells is no longer true. He points towards research conducted by Princeton neuroscientist Elizabeth Gould and others, published in prominent journals like Science and Nature, which indicates that adult mammals do have the capacity to grow new brain cells in the hippocampus, the memory centre of the brain. Robert also adds that growing new neurons is important for maintaining a healthy brain with age.

How do you grow new brain cells?

Brain cell regeneration is associated with a chemical called brain derived neurotrophic factor (BDNF), which is released during exercise. “BDNF is a growth factor in the brain that facilitates the growth of new brain cells and new neural connections,” said Robert. “So, by releasing BDNF from your muscles, this can help increase BDNF levels throughout your body, including your brain, and can help grow new brain cells.”

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How to release BDNF?

Robert mentioned that according to Dr. Austin Perlmutter, “the best exercise to release BDNF is not aerobic exercise, it is resistance training,” and continued, “So, if you want the maximum benefit from exercise to help grow new brain cells, resistance training releases the most BDNF.” BDNF not only promotes healthy brain function and supports healthy aging, but also decreases the risk of Alzheimer’s disease.

The neuroscientist suggests resistance training exercises like weight-lifting, body weight squats, push-ups for best results, and recommends working with a trainer if you are a newbie. He explains, “Basically, push against something or pull against something and use your muscles. And that is fantastic for your brain.”

Note to readers: This article is for informational purposes only and not a substitute for professional medical advice. It is based on user-generated content from social media. HT.com has not independently verified the claims and does not endorse them.

  • Eshana Saha
    ABOUT THE AUTHOR
    Eshana Saha

    Eshana Saha is a fresh face in lifestyle and cultural journalism, bringing a refined, multidisciplinary perspective to the intersection of entertainment, fashion and holistic wellbeing. With less than a year of professional experience, she has quickly adapted to high-pressure editorial environments and currently works full-time with HT Media. Prior to this, she interned for nearly six months with Hindustan Times’ entertainment and lifestyle vertical, where she gained hands-on experience in digital reporting, trend analysis and editorial storytelling. Based in New Delhi, Eshana specialises in comprehensive coverage of major cultural moments — from international film press tours to the curated aesthetics of global fashion showcases, award shows and music-centred events. She holds a Bachelor’s degree in English from St Xavier’s University, Kolkata, and a Master’s degree in English from the University of Delhi, equipping her with a strong academic foundation and a keen ability to deconstruct complex cultural trends into clear, high-impact narratives. Beyond the red carpet, Eshana has developed a growing focus on health and wellbeing reporting. She bridges the gap between celebrity-driven trends and practical, evidence-informed lifestyle advice, ensuring her work remains both aspirational and grounded in editorial rigour. She has extensively covered the health implications of Delhi’s air pollution crisis, while also playing a key role in amplifying expert-led insights on women’s health and mental wellbeing, helping translate complex medical perspectives into informed, impactful public awareness. An artist at heart, she explores multiple creative forms — from visual arts and music to culinary experiments — and brings a creative’s eye for nuance, texture and detail to every story. Whether analysing runway dynamics or examining emerging wellness movements, she remains committed to accuracy and the highest standards of contemporary journalistic ethics.Read More

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