Science &THE IDEAS JOURNAL
Science. Systems. Possibility.
Explore questions across science, from everyday observations to the ideas and methods that help explain them. Clear reading for a curious mind.
Accidentally taking two montelukast tablets at once is almost always low-risk for a healthy adult, because a single 10 mg dose is the standard daily amount and the drug's safety margin is wide.
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Inside the tools of discovery ↗Adamantinoma is a rare, slow-growing malignant bone tumor that arises almost exclusively in the cortex of the tibia, accounting for roughly 0.1 to 0.5 percent of all primary bone cancers.
Alcohol withdrawal symptoms begin 6 to 24 hours after the last drink and follow a predictable three-stage arc: early tremulous symptoms peak at 24 to 48 hours, withdrawal seizures cluster between 12 and 48 hours, and delirium tremens…
Dementia cases worldwide are climbing because more people are living into their 80s and 90s, yet your personal risk of developing Alzheimer's at any given age has been falling for roughly three decades. Both statements are true at once.
An autograft is tissue moved from one site to another within the same patient; an allograft is tissue transplanted from a different person, almost always a deceased donor.
Alloscardovia omnicolens is a slow-growing, facultatively anaerobic bacterium in the family Bifidobacteriaceae, first isolated in 2007 from human dental plaque and oral cavities.
Allergy nasal sprays don’t work for colds because they block histamine and mast-cell pathways, while a cold is caused by a viral infection of the nasal lining.
Africa’s Great Green Wall is a planned 4,970-mile (8,000-kilometer) mosaic of restored land, trees, and water-harvesting works across the Sahel from Senegal to Djibouti, intended to curb desertification and improve livelihoods.
There is no single "African face." Africa holds more genetic diversity than the rest of the world combined, and facial traits vary along gradients that track ancestry, climate, diet, and thousands of years of migration.
An adverse effect is a harmful, unintended response to a drug, vaccine, medical device, or treatment that occurs at a normal dose and for a legitimate purpose.
Acetazolamide lowers intracranial pressure by blocking carbonic anhydrase in the choroid plexus, which cuts cerebrospinal fluid production by roughly 40 to 50 percent within hours of the first dose.
Absolute monocytes are the actual number of monocytes circulating in a microliter of blood, reported as cells per microliter (cells/µL).
Acetate metabolism is the set of pathways that convert the two-carbon molecule acetate (CH₃COO⁻) into usable cellular energy and biosynthetic building blocks, and it operates through three core routes: conversion to acetyl-CoA by…
Adjustment disorder with anxiety is a stress-response syndrome in which emotional and physical anxiety symptoms develop within 3 months of an identifiable stressor and cause marked distress or functional impairment.
The best agave nectar substitutes for cutting fructose are allulose, monk fruit blends, and yacon syrup. For a pourable or granulated swap that still browns and sweetens like sugar, maple syrup and coconut sugar work with far less fructose.
An AGV in manufacturing is a self-driving industrial vehicle that moves raw materials, work-in-progress, and finished goods between stations without a human driver.
Adenovirus in pregnancy is a common respiratory and gastrointestinal infection that is usually mild and self-limiting, but it carries a higher risk of severe pneumonia in pregnant women.
AED and CPR are not competing choices; they are two halves of one rescue. CPR keeps oxygenated blood moving through the heart and brain while an AED analyzes the heart's rhythm and, if needed, delivers a shock to restart it.
ADLs for long-term care are the six basic self-care tasks — bathing, dressing, toileting, transferring, eating, and continence — that determine whether someone qualifies for custodial care, home health, or Medicaid long-term services.
ACTH and cortisol are two hormones that form a single control loop: the pituitary gland releases ACTH (adrenocorticotropic hormone), which travels to the adrenal glands and tells them to make cortisol.
ACT in mental health is a third-wave cognitive behavioral therapy built on psychological flexibility: the ability to stay present with difficult thoughts and feelings while acting on what matters. It does not try to remove symptoms first.
AMPK metabolic activators are generally well tolerated at standard doses, with the most common side effects being mild gastrointestinal upset (bloating, loose stools, nausea) in roughly 10–25% of users, plus dose-dependent fatigue,…
Anti-Müllerian hormone (AMH) levels in ng/ml decline steadily with age, and a normal AMH by age chart in ng/ml runs from roughly 2.5 to 6.5 ng/ml in the early twenties down to below 0.5 ng/ml after age 40.
ADHD and ADD are not two different conditions. ADD is the outdated name for what medicine now calls ADHD, predominantly inattentive presentation.
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