From a New York Times article by Jane E. Brody (Feb 17, 2020):
“It takes 10 to 12 hours to use up the calories in the liver before a metabolic shift occurs to using stored fat,” Dr. Mattson told me. After meals, glucose is used for energy and fat is stored in fat tissue, but during fasts, once glucose is depleted, fat is broken down and used for energy.
I was skeptical, but it turns out there is something to be said for practicing a rather prolonged diurnal fast, preferably one lasting at least 16 hours. Mark P. Mattson, neuroscientist at the National Institute on Aging and Johns Hopkins University School of Medicine, explained that the liver stores glucose, which the body uses preferentially for energy before it turns to burning body fat.
For example, human studies of intermittent fasting found that it improved such disease indicators as insulin resistance, blood fat abnormalities, high blood pressure and inflammation, even independently of weight loss. In patients with multiple sclerosis, intermittent fasting reduced symptoms in just two months, a research team in Baltimore reported in 2018.
On this week’s show, senior correspondent Jeffrey Mervis joins host Sarah Crespi to discuss a new National Institutes of Health (NIH) grant program that aims to encourage diversity at the level of university faculty with the long-range goal of increasing the diversity of NIH grant recipients.
Challenging widely held assumptions about the diminishing abilities of an ageing brain, leading neuroscientist Daniel Levitin argues that we should view getting older as a beneficial experience rather than a form of cognitive entropy. Persuasively argued and consistently surprising, The Changing Mind will alter your perception of the relationship between age and intellect.
We have long been encouraged to think of old age as synonymous with deterioration. Yet, recent studies show that our decision-making skills improve as we age and our happiness levels peak in our eighties. What really happens to our brains as we get older?
More of us are living into our eighties than ever before. In The Changing Mind, neuroscientist, psychologist and internationally-bestselling author Daniel Levitin invites us to dramatically shift our understanding of growing older, demonstrating its many cognitive benefits. He draws on cutting-edge research to challenge common and flawed beliefs, including assumptions around memory loss and the focus on lifespan instead of ‘healthspan’.
Levitin reveals the evolving power of the human brain from infancy to late adulthood. Distilling the findings from over 4000 papers, he explains the importance of personality traits, lifestyle, memory and community on ageing, offering actionable tips that we can all start now, at any age.
Featuring compelling insights from individuals who have thrived far beyond the conventional age of retirement, this book offers realistic guidelines and practical cognition-enhancing tricks for everyone to follow during every decade of their life. This is a radical exploration of what we all can learn from those who age joyously.
As a neuroscientist, professor emeritus of psychology, musician and best-selling author, Daniel Levitin has extensively studied the brain and its impact on aging. His latest book, “Successful Aging,” explores the questions: what happens in the brain as we age and what are the keys to aging well? NewsHour Weekend’s Christopher Booker recently spoke to Levitin to learn more.
From a NeuroscienceNews.com online release article (01/02/20):
During the years 1976 through 1980, 15% of U.S. adults were obese. Today, about 40%of adults are obese. Another 33% are overweight.
“But, of course, food is now abundant, and our next meal is as close as the kitchen, or the nearest fast-food drive-through, or right here on our desk. Often, these foods are high in fats, sugars, and therefore calories, and that’s why they taste good. It’s easy to overconsume, and, over time, this takes a toll on our health.”
In a study published Thursday in the journal Current Biology, Güler and his colleagues demonstrate that the pleasure center of the brain that produces the chemical dopamine, and the brain’s separate biological clock that regulates daily physiological rhythms, are linked, and that high-calorie foods – which bring pleasure – disrupt normal feeding schedules, resulting in overconsumption. Using mice as study models, the researchers mimicked the 24/7 availability of a high-fat diet, and showed that anytime snacking eventually results in obesity and related health problems.
Through the prisms of behavioral neurology and cognitive neuroscience, Scott Grafton brilliantly accounts for the design and workings of the action-oriented brain in synchronicity with the body in the natural world, and he shows how physical intelligence is inherent in all of us—and always in problem-solving mode. Drawing on insights gleaned from discoveries by engineers who have learned to emulate the sophisticated solutions Mother Nature has created for managing complex behavior, Grafton also demonstrates the relevance of physical intelligence with examples that each of us might face—whether the situation is mundane, exceptional, extreme, or compromised.
Elegantly written and deeply grounded in personal experience—works by Oliver Sacks come to mind—Physical Intelligence gives us a clear, illuminating examination of the intricate, mutually responsive relationship between the mind and the body as they engage (or don’t engage) in all manner of physical action.