HIIT workouts are linked to better mental health and longer, healthier lives, according to a new study

a person holding a suitcase: Jamie Grill/Getty Images

© Jamie Grill/Getty Images
Jamie Grill/Getty Images

  • High intensity interval training could boost health and lifespan for adults over 70, according to a new study.
  • Researchers found that people who did strenuous exercise twice a week had better mental and physical health and fitness than those who did moderate exercise. 
  • They were also slightly less likely to die during the five-year period, suggesting HIIT could potentially extend lifespan, in addition to improving quality of life.
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There’s more evidence that vigorous exercise could be the key to a long, healthy life.

High-intensity interval training, or HIIT for short, refers to exercise sessions with short periods of intense effort combined with periods of milder exercise or rest. This may sound intimidating (and can be linked to injuries if done incorrectly), but it doesn’t have to be heavy weight-lifting. Studies have shown even fast walking can

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