Too little sleep ages your organs. So does too much.
A Nature study of ~500,000 people mapped sleep against 23 biological aging clocks across 17 organs (proteomics, metabolomics, MRI). Same result every time: a U-shaped curve.
Fastest aging: under 6 hours or over 8. Slowest aging: about 6.4 - 7.8 hours.
Since 1986 the price of a Big Mac has been used to gauge whether currencies are at their “correct” level.
Rather than converting pay packets at volatile market exchange rates, McWages index compares the number of Big Macs a typical worker can afford with their earnings.
On an annual basis, America continues to top the McWages rankings. On an hourly basis, Switzerland comes out on top.
🚽 A toilet flush can throw a mist of tiny droplets as high as your face (about 163 cm / 5 ft 4 in) and as far as 1.5 m to the side. Most of those droplets are smaller than 3 micrometres, small enough to float and be breathed in.
Some studies still found them in the air 20 seconds after you flush.
Close the lid before you flush. It won’t trap every droplet (they can still sneak out through gaps), but it stops the plume shooting straight up into the breathing zone.
Paper: Adiyani et al., Science of the Total Environment (2026).
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