Edna Francisco

All Stories by Edna Francisco

  1. Health & Medicine

    Slimmer Ticks, Less Disease: Tick-semen protein is potential vaccine

    An antitick vaccine using a protein that causes female ticks to engorge on blood may control tick populations, a new study suggests.

  2. Health & Medicine

    Stronger Proof That Trans Fats Are Bad

    New evidence confirms that eating lots of trans fats can lead to heart problems.

  3. Earth

    Tales of the Undammed

    Although destroying dams is often presumed to restore rivers, the results of such action are actually mixed, according to recent studies.

  4. Health & Medicine

    A Virus Crosses Over to Wild-Animal Hunters

    A potentially dangerous virus is moving from nonhuman primates to Africans who hunt and eat wild animals, a new study suggests.

  5. Health & Medicine

    Fishy Advice—Which Tuna Is Best for You?

    Canned light tuna is a good choice for people who want to lower their intake of mercury.

  6. Health & Medicine

    Suspected Carcinogen Speeds Through People’s Bodies

    A commonly used but potentially carcinogenic flavoring compound stays in people's bodies only briefly.

  7. Health & Medicine

    Formula for Failure

    A bacterium that has been known to cause rare, yet fatal infections in infants appears to be more widespread than scientists have realized.

  8. Monkey Love: Male marmosets think highly of sex

    A new brain-imaging study in marmosets suggests that males sexually aroused by the scent of females may be thinking carefully before they mate, opposing the notion that nonhuman male mammals act purely upon a primal urge.

  9. Health & Medicine

    Pregnancy Alert: Proteins may predict preeclampsia

    Blood concentrations of two proteins that affect blood vessel growth appear to foretell the pregnancy condition known as preeclampsia.

  10. Health & Medicine

    Wine Surprise: Heart-protective effect is independent of antioxidants

    Two studies in mice suggest that, if wine protects against heart disease, it's probably not because of the antioxidants that the drink contains.

  11. Health & Medicine

    Vitamin D and multiple sclerosis

    Women who consume little vitamin D develop multiple sclerosis at a rate about 50 percent higher than those who get lots of the nutrient.