Pot Use Could Double Risk of Car Crash, Research Shows
No reliable roadside test available to identify drugged drivers, experts say
More Than 4 Million Americans Have New Knee
And repeat surgery is likely for many younger recipients, researchers predict When Mom Has Pregnancy Diabetes, Breast-Feeding Curbs Child Obesity
Long-term study found lower BMI in children breast-fed at least 6 months Chemo During Pregnancy Doesn't Seem to Harm Baby
Study suggests treatment of expectant mothers is feasible after first trimester Gloves, Padded Headgear Helps Protect Boxers
It's especially important that young boxers wear protective gear, researchers say Repeat C-Section Best Scheduled at 39 Weeks, Study Says
Operating sooner, later worse for babies, preliminary research finds Brain Scans May Predict How People Learn
Small study suggests ability to sift through 'noise' determines mastery of new skill Young Adults Who Quit Smoking Feel Better Quickly
Coughs begin to clear up within two weeks, study finds H1N1 'Swine' Flu Makes a Comeback in Mexico
Health experts say Americans shouldn't be overly concerned HIV Severity, Treatment Unrelated to Kids' Mental Woes: Study
No evidence found to link antiretroviral therapy with severity of psychiatric symptoms Many Gay Men Would Support 'Home HIV Test': Study
Not yet approved for public use, it picks up AIDS virus in later stages of infection Most Teens Who Self-Harm Are Not Evaluated for Mental Health in ER
Researchers say suicide risk is highest soon after such an incident Prostate Size May Be Clue to Severity of Cancer
In certain cases, smaller gland linked to more aggressive disease, study shows | 
