New York’s clearest lakes range from broad Finger Lakes to compact Adirondack waters where a white Secchi disk can remain visible several meters below the surface. The strongest candidates usually combine low algal density with restrained nutrient levels. In deeper basins, suspended sediment can also settle away from the sunlit surface. The Citizens Statewide Lake…
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Open water swimming has gained a reputation as a tough outdoor habit, yet a national Scottish survey suggests many swimmers value it most for how it affects the mind. In a 2023 study in PLOS ONE, researchers analyzed answers from 717 swimmers and found that mental wellbeing was the most important self-reported benefit in every…
Astronaut sleep looked thin long before launch and stayed thin in orbit in a 2014 study that tracked crews on both space shuttle missions and the International Space Station. Researchers followed 64 astronauts across 80 shuttle missions and 21 astronauts across 13 ISS missions, then compared sleep in flight with sleep during preflight training and…
How can a crew member who works a regular daytime shift still look almost as sleepy as a watchkeeper who stands night duty? A 2019 BMJ Open study followed 198 seafarers on 18 container-ship voyages and found that life at sea cut sleep for both groups, with watchkeepers averaging 5.5 hours per day and day…
