Science Daily

1. Scientists discover strange link between low vitamin D and pain

   Low vitamin D levels may make recovery from breast cancer surgery more painful, according to a study of 184 women undergoing mastectomy. Patients with vitamin D deficiency were three times more likely to experience moderate to severe pain during the first 24 hours after surgery and also used substantially more of the opioid painkiller tramadol. They received slightly more fentanyl during surgery and experienced more postoperative nausea as well.

2. Plague was killing entire families thousands of years before the Black Death

   Ancient DNA reveals that plague was already killing hunter-gatherers in Siberia 5,500 years ago, long before cities and flea-driven epidemics. The prehistoric strains may have been especially dangerous because they carried a genetic factor capable of provoking severe immune reactions.

3. Cancer is rising in younger adults. Faster biological aging may help explain why

   Cancer rates are rising in adults under 55, and new research suggests accelerated biological aging may be one piece of the puzzle. Scientists found that people from more recent generations tended to have bodies that appeared biologically older than those of earlier generations at the same chronological age. Greater biological age acceleration was linked to a higher risk of early onset cancers, with specific patterns seen for lung, gastrointestinal, uterine and colorectal cancers.

4. Chemistry textbooks have been getting this wrong for nearly 100 years

   A foundational chemistry concept found in textbooks for almost 100 years may have been taught incorrectly. Researchers say the inductive effect in neutral molecules appears to extend only across one chemical bond, rather than gradually weakening over three or four bonds as traditionally taught. The team argues that updating this explanation could make organic chemistry easier to understand and provide a stronger foundation for future research and innovation.

5. A coral reef thought dead for 60 years is teeming with life

   More than 60 years after surveys suggested a deep coral reef off Benin was probably dead, scientists have found it alive. Cameras revealed healthy-looking coral patches supporting multiple fish species more than 50 meters beneath the surface. The discovery suggests West Africa’s coastal waters may contain other overlooked reefs that have yet to be documented.