Health Literacy Statistics in the US 2026 | Key Facts

Health Literacy in the US show that only 12% of adults have proficient health literacy, according to the National Assessment of Adult Literacy, the most recent large-scale federal measurement of…

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Americans Without Health Insurance Statistics 2026 | Key Facts

Roughly 27.2 million Americans were uninsured in 2024, the most recent confirmed year of federal data, and that number is projected to climb toward 30 million in 2026 after the…

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Vitamin K Injection Statistics in US 2026 | Key Facts

The rate of U.S. newborns not receiving a vitamin K injection at birth climbed to 8.1% by the end of June 2026, up from 5.2% just six months earlier, according…

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Polygraph Test Statistics in US 2026 | Accuracy, Uses & Failure Rates

American Polygraph Association's meta-analysis of 3,723 examinations puts overall decision accuracy at 87%. In 2026, roughly 62% of large US law enforcement agencies still require pre-employment polygraph screening, even though…

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CTE Statistics in US 2026 | Symptoms, Causes, Stages & Facts

Where does CTE research stand in 2026? Chronic traumatic encephalopathy (CTE) is a progressive, degenerative brain disease caused by repeated head impacts, and it can currently only be definitively diagnosed…

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Cortisol Statistics in the US 2026 | Levels, Stress, Testing & Facts

What is Cortisol? Cortisol is the body's main stress hormone, produced by the adrenal glands and controlled by a feedback loop known as the hypothalamic-pituitary-adrenal (HPA) axis. In America in…

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