Today: a quick check on measles protection, a cautious look at GLP-1 drugs and nail changes, and the Antarctic ice peak that came in low.
Vaccination is the best protection against measles. For most adults, one dose of the MMR vaccine is considered enough. Some situations do call for a second dose. The summary we have doesn't list them, so ask your doctor or check the full NPR piece to see whether you're one of them.
Why it mattersCheck whether your single MMR shot is enough, or whether your situation calls for a second dose.
Full story at NPR Topics: Health →A study across France, the U.S., Brazil and Mexico compared 575 GLP-1 users with 1,329 people with type 2 diabetes or obesity who had never taken the drugs. Nail detachment was reported by 39% of users and 9% of nonusers, and 66% of users reported some nail disorder, versus 53%. Half of users reported unusual hair loss, versus 34%. Weight loss alone didn't fully explain the gap. After adjusting for skin conditions and nutritional deficiencies, detachment and discoloration were still about two to three times as common. But the data were self-reported and gathered at a single point in time, so they show a link, not a cause. The research had support from a dermatology company, and the authors plan longer studies that follow patients from the start of treatment.
Why it mattersNotice that nail, scalp or hair changes on these drugs are worth mentioning to your doctor, and the researchers say not to stop treatment on your own.
Full story at Latest Science News -- ScienceDaily →NASA and the National Snow and Ice Data Center say Antarctic sea ice likely peaked on September 14. It covered an estimated 17.59 million square kilometers, the third-lowest winter maximum on record. Ice there grew about 1% per decade from 1979 to 2014, then fell sharply from 2016, and it has mostly stayed below normal since. The record-low maximum and minimum both came in 2023. Year-to-year swings are large, so scientists are still watching to see whether the decline is lasting or a statistical fluctuation. The ice now heads toward its usual February minimum.
Why it mattersUnderstand that one low year is not a verdict, but the decade-long pattern of lower ice is what scientists are tracking.
Full story at NASA →Get this in your inbox
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