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Rewiring the body clock: Deep brain imaging reveals unexpected complexity in jet lag adjustment

Medical Xpress

This region governs essential behaviors like the circadian clock, sleep, energy balance , and feeding. Po-Ting Yeh, the studys first author, explains the challenge: "It is difficult to study the basic physiological functions controlled by the hypothalamus, which lies deep inside the brain.

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Long-lasting HIV prevention shot headed toward approval

Medical Xpress

The company is working with governments and health groups in the U.K. In clinical trials, no participants who received the injection acquired HIV. But Gilead says the shot should help expand the overall number of people using PrEP in both the U.S. and abroad. © 2025 HealthDay.

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What RFK Jr. Isn’t Talking About: How To Make Vaccines Safer

Physician's Weekly

Within an hour of receiving a covid vaccination in November 2020, Utah preschool teacher Brianne Dressen felt pins and needles through her arms and legs. His clinical study was ending. But for Dressen and others convinced the vaccines injured them, their experiences were symptomatic of a well-intentioned but flawed U.S.