Health Tip: Exercising After Baby is Born

(HealthDay News) -- Many women are eager to slim down after baby arrives, but it takes time for your body to recover.

Heavy Smoking May Raise Odds for Lethal Bladder Cancer

MONDAY, Jan. 14 (HealthDay News) -- Heavy smokers are more likely to develop aggressive and deadly bladder cancers than those who smoke less or nonsmokers, new research shows.

Thigh Is Safer Vaccination Site Than Arm for Toddlers, Study Finds

MONDAY, Jan. 14 (HealthDay News) -- Giving the diphtheria, tetanus and pertussis (DTaP) vaccine in the thigh rather than the arm reduces a toddler's risk of an injection-site reaction that requires medical attention, according to a new study.

Could Baby's Tummy Bacteria Help Spur Colic?

MONDAY, Jan. 14 (HealthDay News) -- Colic is a common problem for babies, and new research may finally provide clues to its cause: A small study found that infants with colic seemed to develop certain intestinal bacteria later than those without the condition.

Twitter May Help Those Trying to Lose Weight

MONDAY, Jan. 14 (HealthDay News) -- Using Twitter may help people lose weight by providing them with social support, researchers report.

Safer Roads Near Schools May Mean Fewer Kids Struck by Cars

MONDAY, Jan. 14 (HealthDay News) -- After New York City made the streets near some of its schools safer, the number of children struck by cars each year dropped substantially, a new study shows.

30 Percent of U.S. Teen Girls Meet Up With Online Strangers

MONDAY, Jan. 14 (HealthDay News) -- Nearly a third of American teenage girls say that at some point they've met up with people with whom their only prior contact was online, new research reveals.

Health Highlights: Jan. 14, 2013

Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:

Fast Food Tied to Asthma, Eczema and Hay Fever in Kids

MONDAY, Jan. 14 (HealthDay News) -- Kids who eat fast food three or more times a week are likely to have more severe allergic reactions, a large new international study suggests.