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Incubation period
Incubation period, also called the latent period or latency period, is the time elapsed between exposure to a pathogenic organism, or chemical or radiation, and when symptoms and signs are first apparent. The period may be as short as minutes, to as long as thirty years in the case of variant Creutzfeldt-Jakob disease.
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Health & Medicine News
September 2, 2025
Sep. 2, 2025 — A long-term study following insomnia patients treated with cannabis-based medical products revealed sustained improvements in sleep quality, mood, and pain management over 18 months. Most participants reported better rest and less anxiety or ...
Sep. 2, 2025 — High-ventilation breathwork with music can evoke psychedelic-like states, shifting blood flow in the brain and reducing negative emotions. Participants experienced unity and bliss, pointing to a natural therapeutic tool with powerful ...
Sep. 2, 2025 — Once a universal feature of human psychology, the “unhappiness hump” in midlife has disappeared, replaced by a new trend: mental health is worst in youth and improves with age. Data from the U.S., U.K., and dozens of countries suggest today’s ...
Sep. 2, 2025 — Japanese scientists have developed ADRIANA, a non-opioid painkiller that could provide powerful relief without the dangers of addiction. With successful trials already completed, large U.S. studies are now underway, raising hopes for a safer future ...
Sep. 2, 2025 — A sweeping review of nearly 100 studies has raised concerns about the mental health impacts of high-potency cannabis products. Researchers found strong links to psychosis, schizophrenia, and cannabis use disorder, while results for anxiety and ...
Sep. 1, 2025 — Scientists are racing to improve weight loss treatments beyond drugs like Ozempic and Wegovy, which are effective but plagued by nausea, bone loss, and weight regain. Tufts University chemists have created a new multi-target compound that goes ...
Sep. 1, 2025 — Researchers have uncovered why smell often fades early in Alzheimer’s: the brain’s immune cells dismantle key nerve connections between the olfactory bulb and brainstem. Membrane changes in neurons send an “eat-me” signal to microglia, which ...
Sep. 1, 2025 — A single RSV vaccine dose is proving to be a powerful shield for older adults, significantly reducing hospitalizations and severe illness over two consecutive RSV seasons. While protection is ...
Aug. 31, 2025 — A breakthrough pill, baxdrostat, has shown remarkable success in lowering dangerously high blood pressure in patients resistant to standard treatments. In a large international trial, it cut systolic ...
Aug. 31, 2025 — Beta blockers, used for decades after heart attacks, provide no benefit for patients with preserved heart function, according to the REBOOT trial. The massive study also found women faced higher risks when taking the drug. Experts say the results ...
Aug. 31, 2025 — New research suggests that exercise may not just make us feel younger—it could actually slow or even reverse the body’s molecular clock. By looking at DNA markers of aging, scientists found that structured exercise like aerobic and strength ...
Aug. 31, 2025 — Drinking nitrate-rich beetroot juice lowered blood pressure in older adults by reshaping their oral microbiome, according to researchers at the University of Exeter. The study found that beneficial ...
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updated 12:56 pm ET
Aug. 30, 2025 — Scientists at Mount Sinai have created an artificial intelligence system that can predict how likely rare genetic mutations are to actually cause disease. By combining machine learning with millions ...
Aug. 30, 2025 — Scientists have uncovered a surprising new healing mechanism in injured cells called cathartocytosis, in which cells "vomit" out their internal ...
Aug. 30, 2025 — Men eating ultra-processed foods gained more fat than those eating unprocessed meals, even with equal calories. Their hormone levels shifted in worrying ways, with testosterone falling and pollutants ...
Aug. 30, 2025 — Scientists have finally uncovered direct genetic evidence of Yersinia pestis — the bacterium behind the Plague of Justinian — in a mass grave in Jerash, Jordan. This long-sought discovery ...
Aug. 29, 2025 — Yale scientists discovered that cavefish species independently evolved blindness and depigmentation as they adapted to dark cave environments, with some lineages dating back over 11 million years. ...
Aug. 29, 2025 — Quantum scientists in Innsbruck have taken a major leap toward building the internet of the future. Using a string of calcium ions and finely tuned lasers, they created quantum nodes capable of ...
Aug. 29, 2025 — A Mediterranean diet alone is healthy, but when combined with calorie control, exercise, and support, it cuts type 2 diabetes risk by 31%. The PREDIMED-Plus study followed almost 5,000 participants ...
Aug. 29, 2025 — For people with macular telangiectasia type 2 (MacTel), an orphan retinal disorder that gradually destroys central vision, there have long been no approved treatment options. But now, a new study ...
Aug. 29, 2025 — Harvard scientists have uncovered that lithium, a naturally occurring element in the brain, may be the missing piece in understanding Alzheimer’s. Their decade-long research shows that lithium ...
Aug. 28, 2025 — Using cannabis to self-medicate comes with hidden dangers—new research shows these users face higher paranoia and consume more THC. Childhood trauma further amplifies the risks, especially ...