Podcast: The Science of Recharging Your Energy with Sara Mednick
If you’re like me, you may have a case of email apnea, where you stop taking restful breaths when you open a work email. Or maybe you’re in the habit of shining blue light into your eyes long after sunset through your phone. Many of us are doing all kinds of things throughout the day that put us in a constant state of fight or flight arousal, with long-term impacts on health, productivity and happiness.
My guest for today’s episode is Sara Mednick, author of The Power of the Downstate, a book about the science of relaxation – why it’s so important, the best ways to go about getting more of it, and the time of day when our bodies are biologically suited to enjoy it the most. As a cognitive neuroscientist at the University of California, Irvine, Mednick has a great scientific background on this topic. After getting her PhD at Harvard, she filled her sleep lab with 7 bedrooms, and this is where she is federally funded to study people sleeping around the clock, with her research published in top journals such as Nature Neuroscience. She received the Office Naval Research Young Investigator Award in 2015, and her previous book, Take a Nap! Change Your Life was based on her groundbreaking research on the benefits of napping.
In our conversation, we talk about how work and society make it tough to get stimulation like food and exercise in ways that support our circadian rhythms, and there just as many obstacles to getting sleep and restoration like our ancestors enjoyed for 99 percent of human history. Sara shares some fascinating ways to get around these challenges, as well as her insights about the importance of exposure to daylight and nature vs nurture when it comes to whether you’re a night owl or an early bird. And we talk about how things could change with work and lifestyles to make it easier to live in accordance with our biological rhythms.
Show notes
3:10 – The definition of “upstates” and “downstates”
5:50 – The power of 6 slow, deep breaths per minute to balance the nervous system
9:05 – Watching out for mouth breathing and email apnea
13:30 – Different ways of breathing for different goals
16:35 – Body rhythms – what is heart rate variability and why is it so important?
21:05 – Are you naturally a morning or night person? Nature vs nurture
27:10 – The perfect storm that gets in the way of following our circadian rhythms
29:15 – The evolution of our pre-bedtime downstates – why it's important to check in with your cave mates
30:10 – The culture shift needed for more people to follow their circadian rhythms and improve their health
35:10 – Employers and communities can build downstates into daily work and life
38:15 – Choosing how we react to the world
41:00 – Being smarter about peak performance
45:09 – The science of pacing yourself for long-term productivity
49:42 – The science of light exposure for circadian rhythms
52:20 – Where to learn more about Sara Mednick’s research and writing
Links:
Sara Mednick’s website https://www.saramednick.com/ and her Twitter
Mednick’s recent book - The Power of the Downstate
Mednick’s book on the benefits of napping - Take a Nap! Change Your Life
The blue light blocking glasses recommended in Mednick’s book https://www.amazon.com/dp/B019C3O2UE?psc=1&ref=ppx_yo2ov_dt_b_product_details
An app for measuring heart rate variability - Elite HRV app https://elitehrv.com/
Thorne take-home Melatonin test
How to have a good life, based on the world's longest study of happiness
What makes for a good life? Such a simple question, yet we don't have great answers. Most of us try to figure it out as we go along, and many end up feeling like they never got to the bottom of it.
Shouldn't something so important be approached with more scientific rigor? In 1938, Harvard researchers began a study to fill this gap. Since then, they’ve followed hundreds of people over the course of their lives, hoping to identify which factors are key to long-term satisfaction.
Eighty-five years later, the Harvard Study of Adult Development is still going. And today, its directors, the psychiatrists Bob Waldinger and Marc Shulz, have published a book that pulls together the study’s most important findings. It’s called The Good Life: Lessons from the World’s Longest Scientific Study of Happiness.
In this podcast episode, I talked with Dr. Waldinger about life lessons that we can mine from the Harvard study and his new book.
Listen on Apple | Listen on Spotify | Listen on Stitcher | Listen on Amazon | Listen on Google
More background on the study
Back in the 1930s, the research began with 724 people. Some were first-year Harvard students paying full tuition, others were freshmen who needed financial help, and the rest were 14-year-old boys from inner city Boston – white males only. Fortunately, the study team realized the error of their ways and expanded their sample to include the wives and daughters of the first participants. And Waldinger’s book focuses on the Harvard study findings that can be corroborated by evidence from additional research on the lives of people of different races and other minorities.
The study now includes over 1,300 relatives of the original participants, spanning three generations. Every two years, the participants have sent the researchers a filled-out questionnaire, reporting how their lives are going. At five-year intervals, the research team takes a peek their health records and, every 15 years, the psychologists meet their subjects in-person to check out their appearance and behavior.
But they don’t stop there. No, the researchers factor in multiple blood samples, DNA, images from body scans, and even the donated brains of 25 participants.
Robert Waldinger, director of the Harvard Study of Adult Development.
Katherine Taylor
Dr. Waldinger is Clinical Professor of Psychiatry at Harvard Medical School, in addition to being Director of the Harvard Study of Adult Development. He got his M.D. from Harvard Medical School and has published numerous scientific papers he’s a practicing psychiatrist and psychoanalyst, he teaches Harvard medical students, and since that is clearly not enough to keep him busy, he’s also a Zen priest.
His book is a must-read if you’re looking for scientific evidence on how to design your life for more satisfaction so someday in the future you can look back on it without regret, and this episode was an amazing conversation in which Dr. Waldinger breaks down many of the cliches about the good life, making his advice real and tangible. We also get into what he calls “side-by-side” relationships, personality traits for the good life, and the downsides of being too strict about work-life balance.
Show links
- Bob Waldinger
- Waldinger's book, The Good Life: Lessons from the World's Longest Scientific Study of Happiness
- The Harvard Study of Adult Development
- Waldinger's Ted Talk
- Gallup report finding that people with good friends at work have higher engagement with their jobs
- The link between relationships and well-being
- Those with social connections live longer
The Friday Five: A new blood test to detect Alzheimer's
The Friday Five covers five stories in research that you may have missed this week. There are plenty of controversies and troubling ethical issues in science – and we get into many of them in our online magazine – but this news roundup focuses on scientific creativity and progress to give you a therapeutic dose of inspiration headed into the weekend.
Listen on Apple | Listen on Spotify | Listen on Stitcher | Listen on Amazon | Listen on Google
Here are the promising studies covered in this week's Friday Five:
- A blood test to detect Alzheimer's
- War vets can take their psychologist wherever they go
- Does intermittent fasting affect circadian rhythms?
- A new year's resolution for living longer
- 3-D printed eyes?