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Today's news

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EurekAlert

Different daily step count and stepping pace combos may all lower risk of early death

Study (observational). Emmanuel Stamatakis and colleagues, writing in the British Journal of Sports Medicine, analyzed UK Biobank wrist-accelerometer data (about 64,743 middle-aged adults followed ~8 years; 1,697 deaths from any cause and 502 from cardiovascular disease). Fewer than 5,000 daily steps at a faster peak 30-minute cadence (~80 steps/min) tracked with lower all-cause mortality risk similar to 5,000–7,500 steps at a slower pace (~60 steps/min). The lowest risk sat around 7,500–10,000 steps/day (~100 steps/min; hazard ratio about 0.57 vs the low-step, low-pace reference). Association is not proof. The 10,000-step slogan is marketing history, not a prescription. Walking is educational movement, not a treatment.

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News-Medical

Ten minutes of slow running boosts brain function and mood

Study. University of Tsukuba researchers (Damrongthai, Kuwamizu, Soya and colleagues) report in Imaging Neuroscience that 24 healthy young adults completed a 10-minute very slow treadmill run at about 3–6 km/h (~35% of peak oxygen uptake) versus a seated control. After the slow run, Stroop interference time shortened (a marker of executive function), self-reported mood improved, and fNIRS showed more activity in left dorsolateral prefrontal and left frontopolar cortex. Greater vertical bounce tracked with a larger mood gain. This is an acute lab session in young volunteers, not a dementia trial and not a running-as-medicine claim. Educational movement notes.

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EurekAlert

Food keeps time, too — and your liver is listening for the dinner bell

Study (mice). Texas A&M biologists led by Jerome Menet report in Science Advances that meal timing drives rhythmic liver gene activity through the nutrient sensor mTOR, in partnership with—but not identical to—the organ’s circadian clock. Blocking mTOR cut rhythmic gene expression by about 50%. The same nutrient signal had different effects depending on time of day. The authors link the finding to shift work, jet lag, late-night eating, and time-restricted eating. This is laboratory animal work, not a human fasting trial and not a reason to treat metabolic disease with a supplement or a clock pill. Meal timing is educational; concentrated “chrono” products are weakly evidenced for this claim.

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