Reference Terms
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Blood alcohol content
Blood alcohol content (or blood alcohol concentration), often abbreviated BAC, is the concentration of alcohol in blood, measured, by volume, as a percentage. For example, a BAC rating of 0.20 means 1 part per 500 in an individual's blood is alcohol. In many countries, the BAC is measured and reported as milligrams of alcohol per 100 milliliters of blood (mg/100ml). Number of drinks consumed is a poor measure of intoxication.
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Health & Medicine News
August 21, 2025
Aug. 21, 2025 — A large-scale review finds that acetaminophen use during pregnancy may increase the risk of autism and ADHD in children. The strongest studies showed the clearest links, pointing to biological ...
Aug. 21, 2025 — Scientists have finally uncovered the missing link in how our bodies absorb queuosine, a rare micronutrient crucial for brain health, memory, stress response, and cancer defense. For decades, ...
Aug. 20, 2025 — Scientists at UCSF have uncovered a surprising culprit behind brain aging: a protein called FTL1. In mice, too much FTL1 caused memory loss, weaker brain connections, and sluggish cells. But when researchers blocked it, the animals regained youthful ...
Aug. 20, 2025 — In a health system where speed often replaces empathy, researchers highlight the life-changing power of listening. Beyond simple questions, values-driven listening—marked by presence, curiosity, and compassion—can transform both patients and ...
Aug. 20, 2025 — An aggressive blood pressure target of under 120 mm Hg can significantly reduce heart disease risk, researchers found. Despite more side effects and higher costs, the approach proved cost-effective and beneficial for many ...
Aug. 20, 2025 — Researchers discovered that early puberty or childbirth doubles women’s risk for major diseases and accelerates aging, while later timing offers protective benefits. Genetic analysis reveals evolutionary tradeoffs, where reproductive advantages ...
Aug. 20, 2025 — Scientists have uncovered a hidden weakness in one of the deadliest childhood cancers. The tumors, which spread quickly and are notoriously hard to treat, rely on a sugar-processing pathway to survive and grow. By blocking this pathway, researchers ...
Aug. 19, 2025 — MSU researchers discovered that microbes begin shaping the brain while still in the womb, influencing neurons in a region critical for stress and social behavior. Their findings suggest modern birth practices that alter the microbiome may have ...
Aug. 19, 2025 — A rare immune disorder has inspired a potential universal antiviral therapy. By mimicking the mutation s unique inflammation signature, researchers developed an mRNA-based treatment that stopped influenza and COVID-19 in animal ...
Aug. 19, 2025 — A breakthrough mRNA cancer vaccine has shown the ability to supercharge the effects of immunotherapy in mice, sparking hope for a universal “off-the-shelf” treatment that could fight multiple cancers. Unlike traditional vaccines designed to ...
Aug. 19, 2025 — Researchers analyzing 33 studies found strong evidence that highly sensitive people are more prone to depression and anxiety but also more likely to benefit from therapy. Since about 31% of the population is highly sensitive, experts argue that ...
Aug. 18, 2025 — Researchers discovered that Covid accelerates blood vessel aging by about five years, especially in women. Even mild infections increased arterial stiffness, with vaccinated individuals showing less damage. This vascular aging may raise long-term ...
Latest Headlines
updated 12:56 pm ET
Aug. 20, 2025 — Hubble’s newest view of the spiral galaxy NGC 2835 adds a stunning twist to a familiar sight. By capturing light in a special wavelength called H-alpha, astronomers have revealed glowing pink ...
Aug. 18, 2025 — A sweeping review of 67 trials has cast doubt on the use of ketamine and similar NMDA receptor antagonists for chronic pain relief. While ketamine is frequently prescribed off-label for conditions ...
Aug. 18, 2025 — Scientists are developing a surgery-free alternative to LASIK that reshapes the cornea using electricity instead of lasers. In rabbit tests, the method corrected vision in minutes without ...
Aug. 17, 2025 — Scientists have engineered a groundbreaking cancer treatment that uses bacteria to smuggle viruses directly into tumors, bypassing the immune system and delivering a powerful one-two punch against ...
Aug. 16, 2025 — A groundbreaking study has found that a simple change in walking style can ease osteoarthritis pain as effectively as medication—without the side effects. By adjusting foot angle, participants ...
Aug. 15, 2025 — Arizona State University scientists have unveiled NasRED, a revolutionary one-drop blood test that can detect diseases like COVID-19, Ebola, HIV, and Lyme with incredible speed and precision. Using ...
Aug. 14, 2025 — Cats can naturally develop dementia with brain changes strikingly similar to Alzheimer’s disease in humans, including toxic amyloid-beta buildup and loss of synapses. A new study shows these ...
Aug. 14, 2025 — Scientists in Sweden have developed a groundbreaking “skin in a syringe” — a gel packed with live cells that can be applied directly to wounds or even 3D-printed into skin grafts. Designed to ...
Aug. 13, 2025 — A vigorous workout can spark anti-cancer proteins, cut cancer cell growth, and help survivors fight recurrence by reducing inflammation and improving body ...
Aug. 13, 2025 — Cambridge scientists have cracked the mystery of why cuff-based blood pressure monitors often give inaccurate readings, missing up to 30% of high blood pressure cases. By building a physical model ...