For people with coronary heart disease, beta blockers can improve survival and quality of life, while aspirin and other anti-platelet medications can reduce the risk of a heart attack.
Aug 1, 2022
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With numerous studies documenting air pollution's link to heart-related illness and death, two leading American physicians are calling on their peers to begin screening patients for exposure to indoor and outdoor air pollution ...
Nov 10, 2021
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We all know the score: current trends predict there will be 9.7 billion mouths to feed by 2050. Producing enough food without using more land, exacerbating climate change or putting more pressure on water, soil and energy ...
Aug 17, 2016
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Infectious diseases expert George Thompson has been studying and treating fungal diseases for over two decades. He monitors their spread, symptoms and relative risks. Lately, he has been more concerned about a rising threat: ...
Nov 21, 2022
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In Raynaud's disease, smaller arteries that supply blood to your skin become narrow, limiting blood flow to affected areas. This causes some areas of your body, such as your fingers and toes, to feel numb and cold in response ...
Sep 21, 2022
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The effectiveness of eugenol—an eco-friendly, plant-based insecticide that is mainly extracted from cloves—in killing the larvae of mosquitoes can be greatly enhanced by the addition of chemicals called synergists, says ...
Feb 21, 2022
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When it's blisteringly hot outside, splashing in the ocean, a lake or even a swimming pool is a popular way to beat the heat. But as global temperatures rise, scientists say, so do your chances of catching a nasty—or even ...
Aug 5, 2019
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Three types of fungi that cause serious lung infections and were once thought to be confined to certain regions of the United States are now widespread.
Jan 5, 2023
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Scientists said Saturday they had identified the mechanism through which air pollution triggers lung cancer in non-smokers, a discovery one expert hailed as "an important step for science—and for society".
Sep 10, 2022
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This year marks the centenary of the 1918 influenza pandemic, the worst flu outbreak in recorded history. A new study into the human, viral and societal factors behind its severity provides valuable lessons that could save ...
Oct 8, 2018
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Climate encompasses the statistics of temperature, humidity, atmospheric pressure, wind, rainfall, atmospheric particle count and numerous other meteorological elements in a given region over long periods of time. Climate can be contrasted to weather, which is the present condition of these same elements over periods up to two weeks.
The climate of a location is affected by its latitude, terrain, altitude, ice or snow cover, as well as nearby water bodies and their currents. Climates can be classified according to the average and typical ranges of different variables, most commonly temperature and rainfall. The most commonly used classification scheme is the one originally developed by Wladimir Köppen. The Thornthwaite system, in use since 1948, incorporates evapotranspiration in addition to temperature and precipitation information and is used in studying animal species diversity and potential impacts of climate changes. The Bergeron and Spatial Synoptic Classification systems focus on the origin of air masses defining the climate for certain areas.
Paleoclimatology is the study and description of ancient climates. Since direct observations of climate are not available before the 19th century, paleoclimates are inferred from proxy variables that include non-biotic evidence such as sediments found in lake beds and ice cores, and biotic evidence such as tree rings and coral. Climate models are mathematical models of past, present and future climates.
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