3 comments

  • khelavastr2 hours ago
    This headline is badly misleading . Traumatic and highly stressful moderate to vigorous physical raises dementia risk.

    Manageable physical activity reduces dementia.

  • wawayanda20 hours ago
    In studies like this I always wonder if they have the causation reversed. Is the exercise staving off the dementia or are people who are healthy enough (mental and physical health) to exercise in the first place less likely to get dementia?
  • adamredwoods10 hours ago
    >> Each 30 minutes higher MVPA was associated with a 4% reduction in the risk of all-cause dementia

    So 4% reduction means... complete chance of dementia? Or it helps 4 in 100 people? How can that be applied? I think that number lacks qualitative information. Conclusions like this are vague. I could see a number like 33% or 50% being more easily applied for expected results. 4% seems within a margin of error.

    • IshKebab4 hours ago
      I think they're saying each 30 minutes of exercise per week is associated with a 4% reduction of risk. So if you do 3 hours per week it's a 36% reduction (roughly).
    • wjnc4 hours ago
      Glance at the study? 90k 63+ yr olds over 4.4 years followed where 700+ developed dementia.