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A protein once thought to mainly protect chromosome ends may also be essential for keeping muscle stem cells ready to repair injuries. Researchers found that TRF2 helps these cells maintain their identity and coordinate the cycle of rest, repair, and renewal.
A new wearable patch may help people reach REM sleep faster and remain there longer without medication or surgery. In a study of 28 participants, the device shortened the time to REM by 43 minutes and extended it by about 16 minutes. Researchers also observed signs of improved stress regulation and changes in brain circuits tied to emotion.
Ancient remains from Vietnam suggest diseases like yaws may have been passed from mother to child thousands of years ago, a form of transmission often assumed to indicate syphilis. The discovery could overturn how scientists interpret ancient infections and complicate the long-running mystery of syphilis’s origins.