Uncategorized

  1. Health & Medicine

    Operation overload: Kids’ backpacks

    Sixth-graders in Italy routinely carry school backpacks that equal, on average, 22 percent of their body weight, a finding researchers link to an earlier report that more than 60 percent of children in this age group had experienced low-back pain more than once.

    By Nathan Seppa
  2. Health & Medicine

    Hysterectomy often improves sex life

    A study of more than 1,000 women who had hysterectomies finds that after the operation, women generally wanted and had sex more often, were more likely to reach orgasm, experienced less vaginal dryness, and were less likely to have pain during sex than was the case before surgery.

    By Nathan Seppa
  3. Astronomy

    A Dark View of the Universe

    Two new studies suggest that galaxies may be surrounded by vast halos of dark matter extending at least 1.5