Continuous positive airway pressure (CPAP) devices are often prescribed for home use to patients with obstructive sleep apnea, a condition where an individual’s airway becomes blocked during sleep causing breathing to intermittently stop and start. CPAP devices use air pressure to keep airways open during sleep.

The Chang'E-4 mission (CE-4) landed on the eastern floor of the Van Kármán crater, near the Moon's south pole, on Jan. 3, 2019. It deployed its Yutu-2 rover, which uses Lunar Penetrating Radar (LPR) to investigate the underground it roams and found that the subsurface at the CE-4 landing site is much more transparent to radio waves.

Due to that, radio signals reached a depth of 40 meters using a 500 MHz frequency - more than three times the depth previously reached by CE-3. This data allowed the researchers to develop an approximate image of the subsurface stratigraphy. 

Scientists have discovered a non-oxygen breathing animal, a tiny, less than 10-celled parasite named Henneguya salminicola which lives in salmon muscle.

As it evolved, the animal, a myxozoan relative of jellyfish and corals, gave up breathing and consuming oxygen to produce energy.

Aerobic respiration is a major source of energy but organisms like fungi, amoebas or ciliate lineages in anaerobic environments have lost the ability to breathe over time. This is the first discovery of an animal that gave up this critical pathway, possibly because the parasite happens to live in an anaerobic environment.

About 74,000 years ago on the island of Sumatra, Indonesia, the largest volcanic event over the last two million years, 5,000 times larger than the Mount St. Helen's eruption in the 1980s, ushered in a worldwide "volcanic winter" that lasted up to ten years followed by a 1,000 year-long cooling of the Earth's surface.

While how close humanity got to extinction is unknown, surviving Homo sapiens in Africa were said to have survived by developing new strategies that eventually enabled them to re-expand and populate Asia 60,000 years ago in a single, rapid wave along the Indian Ocean coastline.

In recent years the U.S. Centers for Disease Control and Prevention have manufactured a lot of concerns they then ask Congress for money to help solve - Zika, Prediabetes, vaping in kids are all examples of where they hyped concern or even defy the international consensus to worry the American public.

Hopefully there is one thing they can feel comfortable eliminating - telling adults to get diphtheria and tetanus booster shots every 10 years. A new study found that if adults were fully vaccinated as kids, booster shots are just increasing health case costs while subsidizing manufacturers.

Edgar Allan Poe, The author, poet, editor, and literary critic, died in 1849 at age 40 in Maryland. He was chronically depressed, he had even tried to commit suicide using laudanum a year before his death.

But when he went to the hospital for the last time, having been found delirious and wearing a stranger's clothes, he hadn't been committing suicide, according to a heuristic look at his writing.