Cardiology

Higher risk of heart failure in cold weather, study suggests

An increase in hospitalization and death in elderly patients with heart failure could be associated with changes in temperature and atmospheric pressure, according to a new study in Environment International. The authors ...

Diseases, Conditions, Syndromes

Updated app will boost Meniere's research

Research into Ménière's Disease is getting a big boost this week, with the release of a newly updated tool to record and analyse symptoms.

Health

Breastfeeding protects against environmental pollution

Living in a city with a high level of vehicle traffic or close to a steel works means living with two intense sources of environmental pollution. However, a study conducted by the UPV/EHU researcher Aitana Lertxundi indicates ...

Overweight & Obesity

Surprising new leads uncovered in global obesity epidemic

Researchers have uncovered surprising new leads in the worldwide obesity epidemic by examining the combination of our rapidly changing environment with our overwhelming appetite for protein.

Health

Outdoor enthusiasts need a lightning plan

(HealthDay)—Those partaking in outdoor sports and activities need to be aware of the threat posed by lightning and take appropriate safety measures, experts say.

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Atmosphere

An atmosphere (from Greek ατμός - atmos, 'vapor' + σφαίρα - sphaira, 'sphere') is a layer of gases that may surround a material body of sufficient mass, by the gravity of the body, and are retained for a longer duration if gravity is high and the atmosphere's temperature is low. Some planets consist mainly of various gases, but only their outer layer is their atmosphere (see gas giants).

The term stellar atmosphere describes the outer region of a star, and typically includes the portion starting from the opaque photosphere outwards. Relatively low-temperature stars may form compound molecules in their outer atmosphere. Earth's atmosphere, which contains oxygen used by most organisms for respiration and carbon dioxide used by plants, algae and cyanobacteria for photosynthesis, also protects living organisms from genetic damage by solar ultraviolet radiation. Its current composition is the product of billions of years of biochemical modification of the paleoatmosphere by living organisms.

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