The locally grown effort was always fine for people fortunate enough to be born into agriculturally rich areas but for everyone else it historically meant famine, poor diets, or high costs.

Modern agriculture and free markets changed all that. A new study finds that as the world has increased its standard of living - there are fewer people in poverty than ever in history and it continues to drop fast - it can lead to concern about food system sustainability. As people get wealthier, they move out of rural areas and into cities, but as we have seen during the SARS-CoV2 panic, when 2 percent of people provide all of the food there is less food system stability. Unless there is a large free trade market.

A new paper suggests 47 links between our genetic code and the quality, quantity and timing of our sleep.

The correlation was created using 85,670 participants of UK Biobank and 5,819 individuals from three other studies, who wore accelerometers (e.g. Fitbit) which recorded activity levels continuously. They wore the accelerometers continuously for seven days which provides more accuracy than people who write how well they slept diaries.
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Brain volume changes during evolution have shown how modern human brains diverged from the brains of our closest primate cousin, the chimpanzee, and a new study takes that a step further.

CT-scans of three-million-year old brain imprints inside fossil skulls of the species Australopithecus afarensis (famous for "Lucy" and "Selam" from Ethiopia's Afar region) reveals that while Lucy's species had an ape-like brain structure, the brain took longer to reach adult size, suggesting that infants may have had a longer dependence on caregivers, a human-like trait.

Patients with hypertension, heart failure, and chronic kidney disease are at increased risk of severe coronavirus disease 2019 (COVID-19), caused by the SARS-CoV-2 virus that originated in Wuhan, China.

Now the debate is clinical use of angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin receptor blockers (ARBs) in patients during the COVID-19 outbreak.

Billions of years ago, an extinction occurred that dwarfed the event that wiped out the dinosaurs 65 million years ago. Its history is written in Canadian rocks and show Earth lost nearly 75 percent of its plant and animal species.

But it had a benefit for us. The die-off of microorganisms that shaped the Earth's atmosphere paved the way for larger animals to thrive.

Given the current coronavirus pandemic, the third of the last 17 years, not to mention annual flu and the other infectious diseases we face, it may seem that microbes are unstoppable, but even when biology on Earth was comprised entirely of microbes, they still had enormous die-off events.

How to detect life before complex life even existed

When a drop of liquid evaporates, solids are left behind in a pattern that depends on what the liquid is, what solids are in it and the environmental conditions.

You may have seen a 'coffee ring' when overflow deposits solids along the edge of the puddle as it evaporates. The same things happen with other beverages. Stuart Williams and colleagues previously found that drops of diluted American whiskeys -- but not their Scotch or Canadian counterparts -- formed webbed patterns when dried on a glass surface, and there were hints that the pattern was distinctive for different brands of whiskey.