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Cognitive benefits from high-intensity interval training may last for years – Harvard Health

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Cognitive benefits from high-intensity interval training may last for years – Harvard Health

Engaging in regular exercise is linked to multiple health benefits, including maintaining cognitive abilities and perhaps reducing the risk of dementia.

Results from a study published online July 8, 2024, by Aging and Disease suggest high-intensity interval training (HIIT) may be better for brain health than other, less vigorous routines. HIIT workouts consist of repeated cycles of short bursts of high-intensity exercise followed by brief “recovery” periods of lower-intensity movement.

In the study, researchers enrolled 151 healthy adults, ages 65 to 86, in a six-month exercise program. Participants underwent a battery of tests to assess function in the hippocampus — the brain area associated with learning and memory. Everyone was randomly assigned to do one of three half-hour exercise routines: balance and stretching, brisk walking on a treadmill, or four HIIT cycles on a treadmill. (Each HIIT cycle consisted of four minutes at 85% to 95% of a person’s maximum heart rate, followed by three minutes of recovery.)

Everyone did approximately 30-minute workouts three days a week for about six months, for a total of 72 sessions. On repeat testing, only the HIIT exercisers showed positive changes in hippocampus functioning compared to their initial evaluation. At a follow-up evaluation five years later, the researchers found that again only the people in the HIIT group retained their improved cognitive function, even if they were no longer doing HIIT.


Image: © VioletaStoimenova/Getty Images

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Fitness

I’ve been doing this standing exercise for six months and it’s transformed my core strength

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I’ve been doing this standing exercise for six months and it’s transformed my core strength

I’ve been working out for years and I can do sit-ups in my sleep—but I still struggle to activate my core.

I’ve always found it difficult to build strength in this area, until a trainer recommended trying a standing exercise called the Pallof press.

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Body awareness is fundamental to longevity, according to an expert trainer—here’s how to improve yours

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Body awareness is fundamental to longevity, according to an expert trainer—here’s how to improve yours

For most of us, the way to increase your chances of living for longer in good health is pretty straightforward.

Strength training, cardio work and flexibility routines can all improve your longevity, but according to trainer Eloise Skinner, there’s something else that’s fundamental to aging well: body awareness.

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Boost cardio fitness with this beginner-friendly alternative to the trending 4×4 Norwegian interval workout

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Boost cardio fitness with this beginner-friendly alternative to the trending 4×4 Norwegian interval workout

The Norwegian 4×4 workout has been touted as the ultimate longevity-boosting workout, credited for significantly improving aerobic fitness scores over just eight weeks.

Popular among runners and developed by researchers from the Norwegian University of Science and Technology (NTNU), it involves performing four sets of four-minute cardio intervals at 85-95% of your maximum heart rate, followed by three minutes of light recovery.

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