There has been some counter-intuitive publishing in the medical field since the summer of 2025 that I only know became aware of.
On the one hand, new cohort studies showed that even 150min/wk of moderate physical activity are strongly correlated with increasing life expectancy. [Liao et al., Journal of the American Heart Association April 2025 in ScienceDaily] [Ren et al. Dual-Cohort study May 2025]
On the other hand, to avoid age-related dementia, one needs to achieve in excess of 300min/wk moderate physical activity in order to change one's outcomes. [Wang et al 2025]
Admittedly, this is mostly a fail at the policy level. It makes no sense to spur people to live longer if they are going to suffer from dementia then, which is not only a horrifying experience for the individual, but traumatizing to their loved ones and incredibly expensive for socialized medicine.
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