The Secrets and Science of Mental Toughness | Joe Risser MD, MPH | TEDxSanDiego

Key Concepts: Grit, Mental Toughness, Brain-Derived Neurotrophic Factor (BDNF), Exercise, Plank, Mental Resilience, Chronic Pain, Complex Regional Pain Syndrome (CRPS).

George Hood and the Power of Mental Toughness:

• George Hood set the world record for the longest plank (10 hours, 10 minutes, 10 seconds). Previously, he had set a record of five hours.
• Hood emphasized that the plank is "90% mental," highlighting the importance of mental focus and distraction techniques (e.g., focusing on conversations, drawing energy from the environment) to endure the physical challenge.
• This illustrates that achieving extraordinary feats isn't solely about physical strength but also about mental fortitude.

Grit, BDNF, and Biology:

• Grit is not just willpower; it's rooted in biology, with Brain-Derived Neurotrophic Factor (BDNF) being a key indicator.
• BDNF is described as "fertilizer for your brain," a protein that supports neuron growth, health, and communication. It's crucial for memory and mental resilience.
• Factors that increase BDNF include sunshine, blueberries, and antidepressants, but exercise is the most potent stimulator.
• The plank, a simple yoga pose, is suggested as a potentially effective exercise for building mental toughness by increasing BDNF.

Clinical Research and Real-World Applications:

• The speaker, a clinical professor and diplomat in Preventive Medicine at UCSD, has worked with medically destitute patients, some with severe conditions like heart attacks, strokes, or accidents leading to chronic pain and disability.
• While a plank isn't a cure-all, research is warranted to explore its potential benefits in managing such conditions.
• The concept of grit and BDNF is compelling due to real-life examples of individuals enduring devastating conditions.

The Plank and BDNF: A Potential Connection:

• While no studies have directly measured BDNF levels during a plank, the speaker suggests a strong connection based on existing knowledge.
• Exercises requiring mental effort are the most effective for raising BDNF levels. The plank demands significant mental fortitude.
• This suggests that the plank may be an efficient and effective way to increase BDNF.

Scientific Evidence and Research:

• A 2005 study in the journal Hippocampus found that exhausting physical exercises (continuous swimming) produced less BDNF than exercises requiring mental focus (navigating mazes) in animals.
• Activities like yoga, which combine physical effort and concentration, have been shown to produce some of the highest levels of BDNF ever measured in people.
• An August 2024 article in Experimental Neurobiology titled “Modulation of BDNF by Physical Exercise” found that exercise doubled BDNF levels.

Case Study: Daniel and Complex Regional Pain Syndrome (CRPS):

• Daniel suffers from CRPS, a rare and extremely painful condition with no known cure.
• Despite his excruciating pain, Daniel managed to plank for over nine hours on his CRPS-affected arm.
• This suggests that physically and mentally challenging exercises can help manage even the most painful conditions, potentially due to the role of BDNF.
• The speaker is designing a study to investigate whether the plank can relieve pain in individuals like Daniel.

Conclusion and Call to Action:

• The speaker aims to raise awareness of the relationship between exercise, BDNF, and improved quality of life, advocating for further research in this area.
• The audience is challenged to incorporate planks into their lives as a way to build grit and potentially improve mental resilience. Even a minute-long plank, whether on the floor or against a wall, can be transformative.