Meghan Rosen headhsot

Meghan Rosen

Staff Writer, Biological Sciences

Meghan Rosen is a staff writer who reports on the life sciences for Science News. She earned a Ph.D. in biochemistry and molecular biology with an emphasis in biotechnology from the University of California, Davis, and later graduated from the science communication program at UC Santa Cruz. Prior to joining Science News in 2022, she was a media relations manager at the Howard Hughes Medical Institute. Her work has appeared in Wired, Science, and The Washington Post, among other outlets. Once for McSweeney’s, she wrote about her kids’ habit of handing her trash, a story that still makes her (and them) laugh.

All Stories by Meghan Rosen

  1. Health & Medicine

    A new study has linked microplastics to heart attacks and strokes. Here’s what we know 

    Patients with microplastics in their arteries were 4.5 times more likely to have a heart attack, stroke or die within the next three years.

  2. Health & Medicine

    Long COVID brain fog may be due to damaged blood vessels in the brain

    MRI scans of long COVID patients with brain fog suggest that the blood brain barrier may be leaky.

  3. Health & Medicine

    The blood holds clues to understanding long COVID

    A growing cadre of labs are sketching out some of the molecular and cellular characters at play in long COVID, a once-seemingly inscrutable disease.

  4. Health & Medicine

    Snake venom toxins can be neutralized by a new synthetic antibody

    A lab-made protein protected mice from lethal doses of paralyzing toxins found in a variety of snakes, a new study reports.

  5. Agriculture

    Could a rice-meat hybrid be what’s for dinner?

    A hybrid food that combines rice, animal cells and fish gelatin could one day be a more sustainable way to produce meat.

  6. Health & Medicine

    When it comes to physical activity, every bit counts

    Biking to the store. Raking leaves. Playing with your kids. Scientists are getting a clearer picture of all the activities that offer health benefits.

  7. Animals

    When do cats play fetch? When they feel like it 

    Most cats that play fetch picked it up on their own, a study of cat owners suggests. The felines tend to dictate when a fetching session begins and ends.

  8. Health & Medicine

    Why weight-loss drugs became more popular than ever this year

    Ozempic and related drugs can drastically reduce body weight, and more potent versions are on the way. But questions remain about who should take them.

  9. Health & Medicine

    A gene editing technique shows promise for lowering LDL cholesterol 

    In a trial of 10 people with familial hypercholesterolemia, a genetic medicine reduced levels of LDL cholesterol in the blood by up to 55 percent.

  10. Health & Medicine

    The weight-loss drug Wegovy lowered heart attack risk in a large trial

    Among 17,000 adults, those on semaglutide were less likely to experience nonfatal heart attacks and strokes or death due to cardiovascular disease.

  11. Health & Medicine

    Brain tissue may be fuel for marathon runners

    Myelin, fatty tissue that insulates nerve cells in the brain, may be a renewable energy source for marathon runners and other endurance athletes.

  12. Health & Medicine

    Newly identified stem cells can lure breast cancer to the spine

    A new type of stem cell discovered in mice and humans might explain why cancer that spreads to other body parts preferentially targets the spine.