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The best AI chatbots of 2026: I tested ChatGPT, Copilot, and others to find the top tools around ...

Over the past 20 y, a resurgence in vitamin D deficiency and nutritional rickets has been reported throughout the world, including the United States. Inadequate serum vitamin D concentrations have ...

In a November 2025 survey conducted by YouGov and designed by the Carnegie Endowment for International Peace, for example, 54 percent of respondents agreed that “the United States is becoming less ...

Europe, as the German philosopher Peter Sloterdijk recently wrote, has ended a long “vacation from history.” We have crossed the threshold into a gloomier era that is once again characterized by power ...

The Pentagon chief's threat comes barely five months before the organization holds its massive National Jamboree event.

Dehydration happens when you lose more fluids than you take in. In older adults, it can raise the risk of constipation, electrolyte imbalances, kidney problems, and falls. Older adults are more prone ...

The AMA's new policy doesn't change much in practice, but it will no doubt contribute to the growing stigma around gender-affirming care.