3+ day, 4+ min ago   (757+ words) A rare inflammatory condition linked to tattoos is appearing more often in Australia. Nelize Pretorius first noticed the blur in one eye, then the other. Doctors thought it was conjunctivitis. Tests said otherwise. “I could hardly see,” she recalled. “I…...

3+ day, 19+ min ago   (513+ words) Insects are under threat partly because of man-made climate change, heatwaves and intensive farming. This summer you may have wondered why you are seeing so few insects squished on your car’s windscreen, compared to a road trip several years ago....

5+ day, 1+ hour ago   (449+ words) A newly discovered bacterial pathway turns a common steroid precursor into testosterone. Testosterone is normally made mostly by the testes, with smaller amounts of androgen precursors coming from the adrenal glands and being converted into active hormones by the body’s…...

5+ day, 23+ hour ago   (562+ words) The plume can reach breathing height, but the actual infection risk remains uncertain. Most bathroom hygiene advice focuses on the things your hands touch. You’re supposed to wash your hands and avoid germs on flush handles, taps, toilet seats, and…...

6+ day, 4+ hour ago   (354+ words) It's one of the "big questions in history" — and it may have a lot to do with religion....

1+ week, 1+ day ago   (46+ words) Popular watches often misjudge workout calories. Errors grow as body fat rises....

1+ week, 2+ day ago   (134+ words) Plants can now make stable myoglobin....

1+ week, 3+ day ago   (25+ words) Global temperatures are poised to breach the limit set by the Paris Agreement, and large-scale carbon dioxide removal will be needed, according to the U.N....

1+ week, 3+ day ago   (345+ words) In advanced alcohol-related disease, liver cells can remain trapped even after drinking stops....

1+ week, 4+ day ago   (1171+ words) You won't explode or boil to death -- not before other more immediate threats kill you....