Unidentified man cared for at Dallas hospital developed symptoms days after flying from West Africa

Some past research had suggested a possible benefit against the disease

Study found adolescents were more likely to smoke, drink, have poor grades after bad concussion

But authors, expert stressed that couples shouldn't base family planning on this finding

In study, obese people with the disorder tended to have more fat at base of tongue

Laser, needle treatment worked no better than 'sham' procedure

In study, obese people with the disorder tended to have more fat at base of tongue

Laser, needle treatment worked no better than 'sham' procedure

CT scans for high-risk seniors covered by private insurers, but Medicare not required to do so

Finding is yet another reason to maintain a healthy weight, experts say