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A large study tracking more than 95,000 people suggests that how you sleep may be linked to your risk of developing dozens of diseases. People who spent more time in REM sleep had lower risks of 83 conditions, including dementia, heart failure, and Parkinson’s disease, while more deep sleep was associated with lower risks of conditions such as type 2 diabetes and major depression.
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Children taking GLP-1 medications (such as Victoza, Saxenda, Trulicity, and Ozempic) for weight loss, prediabetes, or type 2 diabetes may face an overlooked risk: nutritional deficiencies. A new study found that nearly 1 in 6 young patients developed a diagnosed deficiency within a year of starting treatment, with vitamin D deficiency affecting about 12%.
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A topical drug that removes aging, damaged cells helped older mice heal skin wounds significantly faster. The treatment appeared to reactivate repair pathways involved in inflammation, collagen production, and new blood vessel growth.
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The Cascadia subduction zone and northern San Andreas fault may sometimes rupture in rapid succession, according to evidence preserved in 3,100 years of ocean sediments. Researchers identified unusual sediment layers suggesting that earthquakes on the two systems have occurred just minutes to hours apart, including around the massive Cascadia earthquake of 1700. If such synchronization happened again, several major West Coast cities could face emergencies at nearly the same time.
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Scientists have found strong observational evidence that a key part of the Atlantic Meridional Overturning Circulation has been weakening across a wide stretch of ocean for nearly two decades. The slowdown could eventually reshape weather patterns, rainfall, storms, winters, and coastal sea levels around the Atlantic.
