Does magnesium really improve sleep? We review randomized trials of magnesium glycinate, L-threonate, citrate and oxide, including sleep duration, time to fall asleep, subjective sleep quality and the role of magnesium deficiency.
Science
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Finnish sauna studies show a striking association with lower mortality. But after separating what the models actually adjusted for, the causal story becomes much less simple.
A three-day analysis of wearable-sensor data found a repeatable personal turning-direction bias. Turning direction was not convincingly related to falls or physical mobility, but a counterclockwise bias showed an exploratory association with better cognitive performance, echoing a 1992 visuospatial study.
There is a strange feature of modern science: the deeper it studies life, the less life resembles…
The 1918 Rosenau experiments famously failed to transmit influenza under the conditions used. That negative result is historically important, but modern human challenge studies show that influenza virus can reproducibly infect people, including by aerosol.