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We kick things off with a very Canadian check-in on a sudden snowpocalypse in Alberta, plus a crash course in something we never expected to learn so fast: what it’s like when newly adopted female dogs go into heat. Real life is messy, cold, and occasionally chaotic, which is exactly why we love grounding the science in what’s happening at home with our crew of animals.

We shift into a headline that sounds like science fiction: researchers at the University of Bonn take blood cell precursors from an 80-year-old donor and, using direct reprogramming, convert them into neural stem cells that read as less than 20 years old by epigenetic clocks. We unpack what that actually means, how epigenetics differs from genetics, and why watching rejuvenation happen gradually over about 100 days is such a big deal for anti-aging research and regenerative medicine. We also get honest about the limits: this isn’t a “turn people young again” treatment, but it may help scientists build better models for age-linked diseases like Alzheimer’s.

After that, we tackle a question every pet parent has argued about at bedtime: who is disrupting who? A PLOS One dog sleep study tracks humans and dogs with accelerometers for four weeks, compares different sleeping arrangements, and finds something surprising. Objectively, dogs in the bed aren’t linked to worse sleep in this small sample, and when movement lines up, humans often move first and dogs react. We talk about interspecies synchronization, what the data can’t measure, and why sharing sleep space can still be a meaningful part of the human-animal bond.

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