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Public health
Public health is concerned with threats to the overall health of a community based on population health analysis. Health is defined and promoted differently by many organizations. The World Health Organization, the United Nations body that sets standards and provides global surveillance of disease, defines health as: "A state of complete physical, mental and social well-being and not merely the absence of disease or infirmity." The population in question can be as big as a handful of people or, in the case of a pandemic, whole continents. Public health has many sub-fields, but is typically divided into the categories of epidemiology, biostatistics and health services. Environmental, social and behavioral health, and occupational health, are also important fields in public health.
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Science & Society News
December 31, 2025
Dec. 30, 2025 Scientists have discovered a clever way to turn carrot processing leftovers into a nutritious and surprisingly appealing protein. By growing edible fungi on carrot side streams, researchers produced fungal mycelium that can replace traditional ...
Dec. 27, 2025 Stanford scientists have uncovered how mRNA COVID-19 vaccines can very rarely trigger heart inflammation in young men — and how that risk might be reduced. They found that the vaccines can spark a ...
Dec. 24, 2025 What we put on our plates may matter more for the climate than we realize. Researchers found that most people, especially in wealthy countries, are exceeding a “food emissions budget” needed to keep global warming below 2°C. Beef alone accounts ...
Dec. 20, 2025 Long before opioids flooded communities, something else was quietly changing—and it may have helped set the stage for today’s crisis. A new study finds that as church attendance dropped among middle-aged, less educated white Americans, deaths ...
Dec. 15, 2025 Around 1,000 years ago, a major climate shift reshaped rainfall across the South Pacific, making western islands like Samoa and Tonga drier while eastern islands such as Tahiti became increasingly ...
Dec. 8, 2025 A newly analyzed set of climate data points to a major volcanic eruption that may have played a key role in the Black Death’s arrival. Cooling and crop failures across Europe pushed Italian states to bring in grain from the Black Sea. Those ...
Dec. 8, 2025 Human biology evolved for a world of movement, nature, and short bursts of stress—not the constant pressure of modern life. Industrial environments overstimulate our stress systems and erode both health and reproduction. Evidence ranging from ...
Nov. 24, 2025 Ultra-processed foods are rapidly becoming a global dietary staple, and new research links them to worsening health outcomes around the world. Scientists say only bold, coordinated policy action can counter corporate influence and shift food systems ...
Nov. 16, 2025 Researchers found that ancient hominids—including early humans—were exposed to lead throughout childhood, leaving chemical traces in fossil teeth. Experiments suggest this exposure may have driven genetic changes that strengthened ...
Nov. 11, 2025 Historians have traced myths about the Black Death’s rapid journey across Asia to one 14th-century poem by Ibn al-Wardi. His imaginative maqāma, never meant as fact, became the foundation for centuries of misinformation about how the plague ...
Nov. 10, 2025 New research from UBC Okanagan mathematically demonstrates that the universe cannot be simulated. Using Gödel’s incompleteness theorem, scientists found that reality requires “non-algorithmic understanding,” something no computation can ...
Nov. 5, 2025 Most U.S. adults don’t realize alcohol raises cancer risk, and drinkers themselves are the least aware. Scientists say targeting these misbeliefs could significantly reduce alcohol-related cancer ...
Latest Headlines
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Dec. 29, 2025 Scientists have uncovered ancient wolf remains on a small Baltic island where wolves could only have been brought by humans. These animals weren’t dogs, but true wolves that ate the same marine ...
Dec. 24, 2025 The familiar fight between “mind as software” and “mind as biology” may be a false choice. This work proposes biological computationalism: the idea that brains compute, but not in the ...
Dec. 24, 2025 AI writing tools are supercharging scientific productivity, with researchers posting up to 50% more papers after adopting them. The biggest beneficiaries are scientists who don’t speak English as a ...
Dec. 23, 2025 Your eyes may reveal when your brain is working overtime. Researchers found that people blink less when trying to understand speech in noisy environments, especially during the most important ...
Dec. 21, 2025 Sediments from a Roman latrine at Vindolanda show soldiers were infected with multiple intestinal parasites, including roundworm, whipworm, and Giardia — the first time Giardia has been identified ...
Dec. 18, 2025 Traces of opium found inside an ancient alabaster vase suggest drug use was common in ancient Egypt, not rare or accidental. The discovery raises the possibility that King Tut’s famous jars once ...
Dec. 17, 2025 People think online platforms are overflowing with toxic and misleading content, but the reality is far calmer. A small group of highly active users creates most of the harm, while the majority ...
Dec. 16, 2025 Over 8,000 years ago, early farming communities in northern Mesopotamia were already thinking mathematically—long before numbers were written down. By closely studying Halafian pottery, researchers ...
Dec. 16, 2025 A museum visit sparked a revelation when a Roman glass cup was turned around and its overlooked markings came into focus. These symbols, once dismissed as decoration, appear to be workshop ...
Dec. 14, 2025 A series of century-scale droughts may have quietly reshaped one of the world’s earliest urban civilizations. New climate reconstructions show that the Indus Valley Civilization endured repeated ...