You can’t outrun a bad diet.
In one study, healthy young men added about 1,500 calories of junk
food a day to their normal meals. After just five days, fat built up
in their livers and their brains responded less to insulin – and the
brain effect was still there a week after they went back to normal
eating.
And you can’t simply burn it off. Hunter-gatherers who walk for hours
every day burn about the same daily calories as office workers – the
body adapts to extra activity.
Exercise is great for your health. But it can’t fix a bad diet.
That’s today’s shot. Follow @longevityshots for one longevity idea in
20 seconds, every day.
Educational content only, not medical advice. Keep moving – exercise
has huge benefits for your heart, brain and muscles. For changes to
your diet, especially if you have a medical condition, talk to your
doctor or a registered dietitian.
SOURCES:
Kullmann S, et al. A short-term, high-caloric diet has prolonged
effects on brain insulin action in men. Nature Metabolism. 2025.
Summary: https://neurosciencenews.com/junk-food-insulin-obesity-28450/
Pontzer H, Raichlen DA, Wood BM, et al. Hunter-gatherer energetics and
human obesity. PLoS One. 2012;7(7):e40503.
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0040503
#longevityshots #nutrition #junkfood #exercise #metabolichealth
#insulinresistance #healthspan #healthtips
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