Tina Hesman Saey

Tina Hesman Saey

Senior Writer, Molecular Biology

Senior writer Tina Hesman Saey is a geneticist-turned-science writer who covers all things microscopic and a few too big to be viewed under a microscope. She is an honors graduate of the University of Nebraska-Lincoln where she did research on tobacco plants and ethanol-producing bacteria. She spent a year as a Fulbright scholar at the Georg-August University in Göttingen, Germany, studying microbiology and traveling.  Her work on how yeast turn on and off one gene earned her a Ph.D. in molecular genetics at Washington University in St. Louis. Tina then rounded out her degree collection with a master’s in science journalism from Boston University. She interned at the Dallas Morning News and Science News before returning to St. Louis to cover biotechnology, genetics and medical science for the St. Louis Post-Dispatch. After a seven year stint as a newspaper reporter, she returned to Science News. Her work has been honored by the Endocrine Society, the Genetics Society of America and by journalism organizations.

All Stories by Tina Hesman Saey

  1. Life

    Spanish Inquisition couldn’t quash Moorish, Jewish genes

    Finding suggests modern history, not just prehistory, can leave a strong mark on a region’s genetic signature.

  2. Health & Medicine

    Protein found to set the heart’s cadence

    Researchers have discovered a molecular metronome that sets the rhythm of the heart and blood pressure.

  3. Life

    Protein crucial in preventing Parkinson’s

    By destroying bad mitochondria, Parkin protects cells

  4. Health & Medicine

    Sleep makes room for memories

    Sleep erases old memories to make way for new learning

  5. Health & Medicine

    Neandertals, gut microbes and mail-order ancestry tests

    Geneticists weigh in during the annual meeting of the American Society of Human Genetics.

  6. Health & Medicine

    Diversity of human skin bacteria revealed

    First large-scale inventory of microbes charts types, locales of bacteria.

  7. Humans

    Women’s chromosome division different from men’s

    Using fluorescent markers, scientists are discovering that men and women divide chromosomes differently. The research may help explain Down syndrome and other chromosomal disorders.

  8. Neuroscience

    Selective memory

    Using genetic engineering and chemical manipulation, scientists erased the memory of a stressful experience from a mouse’s brain.

  9. Life

    Community of one

    Scientists have discovered how a single bacterial species living in a gold mine in South Africa survives on its own. Its genome contains everything it needs to live independently.

  10. Health & Medicine

    Don’t forget diet composition

    Caloric restriction, an antiaging technique, fails to lower levels of IGF-1, a growth factor that, in high amounts, is linked to cancer in humans. But cutting protein along with calories does decrease IGF-1.

  11. Life

    X chromosome is extra diverse

    Men who father children with multiple women are responsible for “extra” diversity on the X chromosome, a new study of six different populations suggests.

  12. Health & Medicine

    This is the brain on age

    The activity of genes in men's brains begins to change sooner than it does in women's brains, a new study shows.