← 10% Happier with Dan Harris

How To Prevent Dementia | Lisa Genova

Oct 23, 2023 1h 1m 21 insights
<p><em>New episodes come out every Monday, Wednesday, and Friday for free, with 1-week early access for Wondery+ subscribers.</em></p> <p>---</p> <p>Understanding the difference between 'normal' forgetfulness and actual memory loss, practical ways to stave off Alzheimer's disease, and meditation's role in brain health.   </p> <p><a href="https://www.lisagenova.com/" rel="noopener noreferrer" target="_blank">Lisa Genova</a> has a Ph.D. in Neuroscience from Harvard University. She is the New York Times bestselling author of several novels including <em>Still Alice</em>—which was adapted into a film starring Julianne Moore who won the 2015 Best Actress Oscar for her role as Alice Howland, <em>Love Anthony</em>, and <em>Every Note Played.</em> Her first work of nonfiction is <em>Remember: The Science of Memory and the Art of Forgetting</em>. Genova's first TED talk, <a href="https://www.ted.com/talks/lisa_genova_what_you_can_do_to_prevent_alzheimer_s?utm_campaign=tedspread&amp;utm_medium=referral&amp;utm_source=tedcomshare" rel="noopener noreferrer" target="_blank"><em>What You Can Do To Prevent Alzheimer's</em></a> has been viewed over eight million times and her most recent TED talk, <a href="https://www.ted.com/talks/lisa_genova_how_your_memory_works_and_why_forgetting_is_totally_ok?utm_campaign=tedspread&amp;utm_medium=referral&amp;utm_source=tedcomshare" rel="noopener noreferrer" target="_blank"><em>How Memory Works--and Why Forgetting is Totally OK</em></a> was the sixth most watched TED talk of 2021.</p> <p><br /></p> <p><strong>In this episode we talk about:</strong></p> <p><br /></p> <ul> <li>The difference between 'normal' forgetting and actual memory loss</li> <li>The difference between dementia and Alzheimer's disease </li> <li>Meditation's role in brain health</li> <li>What the Memory Paradox is </li> <li>The best foods and types of exercise for staving off Alzheimer's</li> <li>The three things happening in your brain while you sleep that are helpful for memory </li> <li>Why brain games (like crossword puzzles and sudoku) don't actually improve memory</li> <li>The first necessary ingredient for creating a memory </li> <li>How memories are formed</li> <li>And the relationship between memories and music</li> </ul> <p><br /></p> <p><strong>Related Episodes:</strong></p> <p><a href="https://www.tenpercent.com/podcast-playlists/sleep-better" rel="noopener noreferrer" target="_blank">Ten Percent Happier Podcast Sleep Series</a></p> <p><br /></p> <p><strong>Full Shownotes:</strong> <a href="https://www.tenpercent.com/tph/podcast-episode/lisa-genova" rel="noopener noreferrer" target="_blank">https://www.tenpercent.com/tph/podcast-episode/lisa-genova</a></p>
Actionable Insights

1. Recognize Agency Over Brain Health

Understand that you have significant influence over your brain health and memory through lifestyle choices, which can contribute to your ability to remember today and prevent future Alzheimer’s.

2. Embrace Memory Paradox: Act & Forgive

Take memory seriously by prioritizing brain-healthy habits (exercise, sleep, diet, social connection, stress reduction), but hold it lightly by forgiving yourself for normal forgetting, as this reduces stress that can harm memory.

3. Prioritize 7-9 Hours Sleep

Aim for seven to nine hours of sleep per night, as this helps clear amyloid beta from the brain and can reduce the risk of Alzheimer’s by about half.

4. Engage in Aerobic Exercise Daily

Perform 30 minutes of aerobic exercise, such as brisk walking (like you’re in a hurry), five days a week, to reduce your risk of Alzheimer’s and dementia by a third to a half.

5. Adopt Mediterranean or MIND Diet

Regularly follow the Mediterranean or MIND diet, which has been shown to reduce the risk of dementia by 40-60%.

6. Meditate to Reduce Chronic Stress

Meditation helps reduce your reactivity to chronic stress, restoring cortisol levels and hippocampus size, thereby protecting memory and reducing Alzheimer’s risk.

7. Cultivate Strong Social Relationships

Prioritize and maintain good social relationships, as strong connections help manage stress, combat social isolation (a risk factor for Alzheimer’s), and contribute to longevity and brain health.

8. Learn New, Complex Things

Instead of brain games, build an Alzheimer’s-resistant brain by learning new and complex things like reading books, listening to podcasts, learning an instrument or sport, or visiting new places, as this creates new neural connections.

9. Cultivate Attention for Memory

Consciously pay attention to what you want to remember, as attention is the first necessary ingredient for creating a lasting memory, preventing everyday forgetfulness like misplacing items.

10. Outsource Prospective Memory with Lists

Use checklists, to-do lists, or other external tools to outsource your prospective memory (remembering to do things later), as it is inherently unreliable for all humans.

11. Don’t Stress Over Imperfect Sleep

While aiming for 7-9 hours of sleep is important, avoid stressing over occasional bad nights, as chronic stress itself can harm memory; instead, focus on doing your best each night, recognizing your resilience.

12. Accept Normal Forgetting, Reduce Stress

Recognize that normal forgetting (like names or where you put things) is common and not a sign of Alzheimer’s; stressing about it chronically can actually lead to memory problems, so give yourself a break.

13. Treat Untreated Sleep Apnea

If you suspect or have untreated sleep apnea, address it, as it can be a significant contributor to the development of dementia and Alzheimer’s.

14. Eat Brain-Boosting Whole Foods

Incorporate green leafy vegetables, brightly colored fruits and berries, nuts, beans, olive oil, and fatty fish like salmon into your diet for high-octane brain fuel, both for daily function and Alzheimer’s prevention.

15. Engage in Aerobic & Playful Exercise

Prioritize aerobic and leg weight-bearing exercises like brisk walking, or engage in playful physical activities such as dance, pickleball, or swimming, which use your brain in a more complex way and reduce dementia risk.

16. Enhance Walks with Social & Novelty

Maximize the benefits of exercise by walking with someone to engage in conversation and choosing new, unfamiliar routes or locations to stimulate your brain and build new neural connections.

17. Practice Mindful Eating Habits

Be mindful of your food choices, consciously deciding what to feed your brain and body rather than mindlessly grabbing habitual snacks, to make healthier dietary decisions.

18. Google Forgotten Information

Don’t hesitate to Google names, facts, or words you can’t recall, as your brain isn’t doing anything useful by staying stuck on the ’tip of the tongue’ and looking it up is not cheating or weakening your memory.

19. Obtain Vitamins from Diet, Check D/B12

Focus on getting necessary vitamins and micronutrients from a balanced diet, as supplements beyond B12 and Vitamin D (if deficient) are generally not proven to enhance memory and may just result in expensive waste.

20. Practice Improv with Alzheimer’s Patients

When interacting with someone with Alzheimer’s, agree to their reality (‘yes, and…’) rather than correcting them, to maintain emotional connection and build a relationship.

21. Use Music for Alzheimer’s Connection

Play music from an Alzheimer’s patient’s younger years, as familiar songs can activate related memories and emotions, bringing joy and connection even when other memories are inaccessible.