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Monday, November 2, 2026 ยท MEN'S EDITION
LongevityMorning
What's new in feeling better and living longer. 5-minute read.
Good morning. Today: what walking speed tracked with over 12 years, a peanut trial that looked inside older brains, and what frequent naps may signal.
01 ยท TRAINING ยท LONGEVITY
Faster walkers had lower death risk over 12 years
In a UK study of 4,067 older adults followed a median of nearly 12 years, faster clinic walking speed and a quicker everyday stepping pace were each tied to a lower risk of death.
Why it matters: Walking is the most common form of exercise, and the study compared a quick clinic walking test with step data from a wrist tracker worn in daily life.
The details: Participants, averaging about 69 years old and about one-third women, came from the Whitehall II study; 739 died during follow-up. Each standard increase in walking speed, timed over a 2.44-meter course, was tied to a 23% lower risk of death after full adjustment. Higher median and peak daily cadence, from a wrist accelerometer worn for nine days, were tied to 17% and 18% lower risk. Published Oct. 23 in JAMA Network Open.
Yes, but: It's observational, and the two measures were only weakly correlated, each with modest predictive ability on its own. "People who naturally walk faster may already have better underlying health," said physical therapist Neha Sabharwal, who wasn't involved. Funding wasn't reported in the coverage.
Source: Healthline (JAMA Network Open)
02 ยท DIET ยท BRAIN HEALTH
Daily peanuts improved brain insulin response in older adults
In a Maastricht University trial of 31 healthy adults aged 60 to 75, 16 weeks of eating unsalted, skin-roasted peanuts every day improved how memory-related brain regions responded to insulin, compared with 16 weeks without peanuts.
Why it matters: Insulin helps support memory in the brain, and peanuts are one of the most common snacks around.
The details: Participants ate 60 grams (about two servings) a day in one phase and no peanuts in the other, in random order. MRI scans after a nasal insulin spray showed better responsiveness in areas including the hippocampus. The same group earlier reported a 3.6% rise in overall brain blood flow and 5.8% better verbal memory scores after 16 weeks of peanuts. Published in Food & Function.
Yes, but: The trial was small, it measured brain imaging rather than memory, and the release didn't give effect sizes. It was funded by The Peanut Institute Foundation, which issued the release; the researchers said the foundation had no role in the study. "Our study found that daily peanut consumption beneficially affected insulin responsiveness in memory-related brain regions in older adults," said senior author Peter Joris.
03 ยท SLEEP ยท BRAIN HEALTH
Frequent napping was tied to 48% higher dementia risk
Among 995 U.S. Medicare beneficiaries 65 and older followed up to 10 years, those who napped most days or every day had a 48% higher risk of dementia than those who rarely or never napped.
Why it matters: Daytime dozing gets more common with age, and Johns Hopkins researchers looked at how napping habits tracked with later dementia.
The details: Data came from the National Health and Aging Trends Study, with napping self-reported. Unintentional napping was tied to a 39% higher risk, and naps of 30 minutes or less to a 40% higher risk, the coverage reported. Published in The Journal of Gerontology: Medical Sciences, led by Kening Jiang.
Yes, but: It's observational and can't show cause. Jiang said more napping "may reflect neurodegenerative processes underlying dementia that affect sleep-wake regulation." Internist Dr. Dung Trinh, who wasn't involved, said, "It is important to emphasize that this does not mean napping causes dementia." Funding wasn't reported in the coverage.
Source: Medical News Today
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See you tomorrow morning.
LongevityMorning is for informational purposes only and isn't medical advice.