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Wounded skin cells scream with slow-motion electric pulses.

Such electric spikes are a surprise because only nerve cells were thought to communicate this way. These signals move at a snail’s pace compared to nerve impulses and can be detected at least 500 micrometers away — about the distance of 40 cells — researchers report in the March 25 Proceedings of the National Academy of Sciences. The pulsing electrical waves may help injured cells’ neighbors prepare to heal…

As soon as the genetic testing company 23andMe filed for bankruptcy on March 23, 2025, concerns about what would happen to the personal information contained in its massive genetic and health information database were swift and widespread. A few days after, a U.S. judge ruled that the company could sell its consumer data as part of the bankruptcy.

The attorneys general of several states warned their citizens to delete their genetic data. California urged its citizens to request that…

The 2025 Los Angeles wildfires reduced more than 15,000 structures to ash in a matter of days. Among the devastation were 11 public and private schools and 30 child care facilities. In all, the fires disrupted the education and daily lives of over 700,000 students.

The fires first erupted on Jan. 7, 2025, in the Pacific Palisades, a small enclave of Los Angeles, and in Eaton Canyon, where the tight-knit community of Altadena is nestled in the foothills just north of Pasadena. Fierce…