THURSDAY, Jan. 5 (HealthDay News) -- Heartburn and acid reflux strike many people as an annoying and painful but ultimately harmless problem -- a result of overindulgence and gluttony that must be endured, much like a hangover after a night of drinking.

THURSDAY, Jan. 5 (HealthDay News) -- Susan Schneck began suffering from frequent, painful heartburn in 1998.

(HealthDay News) -- Children may act out in an aggressive way because they're frustrated or just don't know how to express their emotions. But there are times when it's wise for a parent to call the pediatrician during an aggressive outburst.

(HealthDay News) -- It's important to start potty training at the right time -- not before your child is ready.

WEDNESDAY, Jan. 4 (HealthDay News) -- Physicians need to take care when prescribing seizure medication to HIV/AIDS patients to prevent harmful interactions between drugs, experts warn.

THURSDAY, Jan. 5 (HealthDay News) -- Researchers may have pinpointed how heart disease can lead to diabetes, a finding that could lead to new preventive treatments.

THURSDAY, Jan. 5 (HealthDay News) -- New research suggests that a blood test may one day be able to tell expectant mothers the gender of their baby as early as the first trimester.

THURSDAY, Jan. 5 (HealthDay News) -- Toddlers who miss daytime naps may be at increased risk for mood disorders later in life, a new study indicates.

THURSDAY, Jan. 5 (HealthDay News) -- Giving antibiotics to pregnant women at risk of streptococcus B infection greatly reduces infection rates in newborns, according to a new study.

THURSDAY, Jan. 5 (HealthDay News) -- Man's beloved four-legged friends not only respond to the words and ministrations of humans, dogs can understand and anticipate the intentions of their people, researchers are reporting.

WEDNESDAY, Jan. 4 (HealthDay News) -- Nearly one in four girls who gets the human papillomavirus (HPV) vaccine mistakenly thinks that her risk of getting other sexually transmitted diseases is lowered, a new study indicates.

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

THURSDAY, Jan. 5 (HealthDay News) -- Children and young adults with neurological and neurodevelopmental conditions are at high risk for complications from the flu and should receive flu vaccinations, say health officials who investigated a flu outbreak in Ohio in February 2011.

THURSDAY, Jan. 5 (HealthDay News) -- More than half of U.S. jails didn't receive any vaccine to protect inmates during the 2009-10 outbreak of H1N1 swine flu, a new study says.

THURSDAY, Jan. 5 (HealthDay News) -- Preliminary findings suggest a drug used to treat another disease might also reduce painful flare-ups in gout patients starting new medication regimens.

THURSDAY, Jan. 5 (HealthDay News) -- Pediatric health experts are applauding a U.S. advisory panel's recommendation to lower the threshold for toxic lead exposure in children.

THURSDAY, Jan. 5 (HealthDay News) -- By gluing together cells from different genomes to form mixed embryos, researchers revealed they have created the world's first chimeric monkeys.

THURSDAY, Jan. 5 (HealthDay News) -- Sorry, Boomers, but a new study suggests that memory, reasoning and comprehension can start to slip as early as age 45.

THURSDAY, Jan. 5 (HealthDay News) -- Daily aspirin use among seniors may double their risk of developing a particularly advanced form of age-related macular degeneration, a debilitating eye disease, a large new European study suggests.