A new study of more than 13,000 cities worldwide has found that the number of person-days in which inhabitants are exposed to extreme combinations of heat and humidity has tripled since the 1980s. The authors say the trend, ...
Environment
Oct 4, 2021
3
555
A new study from Washington University School of Medicine in St. Louis sheds light on how human gut microbes break down processed foods—especially potentially harmful chemical changes often produced during modern food manufacturing ...
Cell & Microbiology
Oct 9, 2019
0
215
On a ho-hum day some 12,800 years ago, the Earth had emerged from another ice age. Things were warming up, and the glaciers had retreated.
Earth Sciences
Feb 1, 2018
69
8909
Space exploration is a complex and risky mission that requires careful preparation and a thorough understanding of the challenges inherent to life in space.
Space Exploration
Feb 8, 2024
0
17
Extreme heat and wildfire smoke are independently harmful to the human body, but together their impact on cardiovascular and respiratory systems is more dangerous and affects some communities more than others.
Environment
Feb 2, 2024
3
123
The global consumption of pharmaceuticals is growing rapidly every year, reaching 4 billion doses in 2020. As more and more pharmaceuticals are metabolized by the human body and enter sewage and wastewater treatment plants, ...
Environment
Jan 23, 2024
1
57
Scientists have shown how a molecule with broad-spectrum antibiotic activity works by disabling a process vital to bacterial growth without affecting the normal functioning of human cells. The journal mBio published the work, ...
Cell & Microbiology
Nov 1, 2023
0
28
Dyes widely used in the textile, food and pharmaceutical industries pose a pressing threat to plant, animal and human health, as well as natural environments around the world, a new study has found.
Earth Sciences
Oct 26, 2023
0
30
A new study finds that greenspace—the vegetation in a neighborhood's yards, parks and public spaces—has a positive impact on a key genetic marker associated with exposure to stress. However, the study also finds that ...
Ecology
Oct 18, 2023
0
51
A team of A*STAR scientists has made a significant breakthrough in understanding how perfluorooctanoic acid (PFOA) is processed by the human body.
Biochemistry
Oct 3, 2023
0
16
Health effects (or health impacts) are changes in health resulting from exposure to a source. Health effects are an important consideration in many areas, such as hygiene, pollution studies, workplace safety, nutrition and health sciences in general. Some of the major environmental sources of health effects are air pollution, water pollution, soil contamination, noise pollution and over-illumination.
A non-stochastic or deterministic health effect has a severity that is dependent on dose and is believed to have a threshold level for which no effect is seen. Stochastic health effects occur by chance, generally occurring without a threshold level of dose, whose probability is proportional to the dose and whose severity is independent of the dose, such as cancer and genetic effects.
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