Medicine, prevention, nutrition, mental health, healthy aging, health technology, health policy, and the regulation of supplements.
A 2025 guideline from the US Departments of Veterans Affairs and Defense recommends CBT-I for chronic insomnia and suggests it over medication as first-line care. The therapy combines behavioral and cognitive work, while sleep restriction can temporarily increase daytime sleepiness and requires an individualized plan.
A positive fecal immunochemical test means blood was detected in a stool sample, but it does not diagnose colorectal cancer. The result usually leads to colonoscopy because another stool sample cannot locate the bleeding source or remove a precancerous lesion.
An April 2026 BMJ Open audit rated 49.6 percent of 250 responses from five consumer chatbots as problematic when tested with misinformation-prone health prompts. Consumers can reduce that risk by checking the exact claim against regulator records, matching it to human evidence and opening every cited source.
The World Health Organization's 2025 ICOPE handbook places a six-area capacity screen at the start of a four-stage primary care pathway for older adults. Studies in Spain and Taiwan found that results varied by domain and tool version, limiting what a one-time screen can establish.
A July 2026 review found only low- or very-low-certainty evidence for exosome-based nonsurgical facial rejuvenation. Evidence for products labeled with exosomes, NAD+, stem cells or peptides depends on the formulation, route and outcome, not the laboratory term alone.
A 2025 systematic review found that all six included studies, covering 689 children, reported gains in at least one developmental domain. No randomized trials were included, and WHO-UNICEF guidance says a concerning screen must lead to assessment and tracked follow-up rather than serve as a diagnosis.
World Medical Association guidance reaffirmed in October 2024 tells physicians to give evidence-based information and avoid recommending unproven products in media. A doctor's appearance, a ‘clinically proven’ label and a patent answer different questions, and none alone establishes a supplement's claimed effect.
The World Health Organization's healthy-diet guidance, updated on January 26, 2026, gives adults managing blood pressure, glucose or cholesterol a shared set of priorities. It favors whole grains, pulses, fruit and vegetables while limiting sodium, free sugars, saturated fat and trans fat, but clinical targets still vary.
The European Union's 2024 annual report said a screening found that 97 percent of the influencers checked posted commercial content, but only one in five consistently identified it as advertising. For supplement posts, a sponsorship label identifies a commercial tie; it does not show that a health claim matches regulator records or human evidence.
The World Health Organization's July 31, 2026 guidance says heat-related deaths and hospital admissions can rise on the day of an extreme-heat event and in the days that follow. A household plan should connect local warnings to cooling, fluids and rest, with earlier action for children, older adults and people with chronic illness.
A 2024 guideline from the US-based American College of Gastroenterology uses the ratio of aspartate aminotransferase (AST) to alanine aminotransferase (ALT) only as one part of an alcohol-associated hepatitis assessment. Raw values, symptoms, exposure history and other tests determine follow-up.
The US Centers for Disease Control and Prevention says head-injury symptoms may appear immediately or hours to days later. Older adults can also develop chronic subdural bleeding after minor injuries, making a baseline record and follow-up changes important.
Codex Alimentarius guidance treats “natural” and absence claims as conditional marketing claims, not proof that a packaged food is safer or more nutritious. The ingredient list provides more specific evidence, but national rules determine how each claim and additive must be declared.
Evidence reviews do not support commercial detox programs for removing toxins or alkaline diets for preventing cancer. Ketogenic diets are established treatments for some cases of epilepsy, but weight-loss evidence and safety depend on the regimen and the person using it.
Adults can undergo orthodontic treatment, but appliance choice depends on the teeth, gums, roots and jaws rather than age alone. Clear aligners and fixed braces can produce similar results in some cases, while complex treatment and unsupervised mail-order care carry greater uncertainty.
Root canal treatment removes inflamed or infected pulp, cleans and seals the canals, and preserves the outer tooth. The treated tooth can still develop decay or fracture, and the appropriate final restoration depends on its location and remaining structure.
The European Food Safety Authority sets a reference intake of 0.83 grams of protein per kilogram of body weight a day for adults. Athletes, some older people and those with chronic kidney disease need different evidence and, in some cases, clinical guidance.
The World Health Organization advises moving to the coolest room at night and using air conditioning with a fan when available during a heatwave. Fans, bathing and bedding serve different purposes, and no single bedroom temperature suits every sleeper or climate.
