(microgen, iStock/Getty Images Plus) Infants and young children with low levels of vitamin D may be at greater risk of high blood pressure later in childhood, a new study says. Researchers followed 775 children from birth to age 18 at the Boston Medical Center. Most lived in a low-income urban area, and about two-thirds were…

The Hughes family from left: Reese, mom Nicole, Lily, dad Jonathan and Levi, who drowned during a family vacation. (Photo courtesy of the Hughes family) Nicole and Jonathan Hughes, a teacher and a physician with three young children, were acutely aware of the dangers of swimming pools and lakes. From fenced-off pools to life jackets…

(eugenekeebler, Getty Images) Dazzling graphics, engaging applications and a dizzying array of beeps, pings and rings make smartphones and other portable gadgets hard to resist. With summer vacation starting for millions of American children, many parents are asking: How much screen time is too much? In newly released guidelines, the World Health Organization recommends no…

(fremate via DepositPhotos) State legislatures and national retailers appear to be in a race to see who can stamp out cigarette sales to underage consumers faster. Eight states enacted bills so far this year to raise the legal sales age of tobacco products to 21, increasing the total states with such laws to 14. Two…

(Sebastian Kaulitzki, Adobe Stock) After an uneventful pregnancy, Amanda Blanchfield thought she had delivered a healthy baby, a boy she and her husband named Cash. A slight heart murmur clued doctors that there was a problem. An echocardiogram uncovered cardiomyopathy, a disease of the heart muscle. In Cash’s case, an obstruction made it hard for…

Boston pediatrician Dr. April Inniss is taking a creative approach to teaching kids about their health. (Photo courtesy of April Inniss) One of the most valuable lessons in pediatrician April Inniss’ medical career came from an 8-year-old boy. Inniss was just out of medical school and was asked to draw blood from the terrified young…

(Henglein and Steets, Getty Images) Revamped guidelines that increased how many children were considered to have high blood pressure do indeed help predict how many of those kids will develop heart disease as adults, a new study says. The guidelines, which hadn’t been updated since 2004, were issued by the American Academy of Pediatrics in…

Sunny Williams started making videos to ease kids’ concerns about doctors, hospitals and medical procedures. (Photo courtesy of Sunny Williams) At 10:17 a.m. on the first day of his first job out of law school, Sunny Williams looked at the stack of papers on his desk and thought, “I’ve made a terrible mistake.” His mind raced…

(ISO3000, iStock) Overweight children may be more likely than normal-weight children to develop life-threatening blood clots as adults, a new Danish study suggests. The good news is, getting to a healthy weight by age 13 eliminated the extra risk. For the study, published Friday in the Journal of the American Heart Association, the research team…

Ruben Corona after his heart transplant. (Photo courtesy of Lily Figueroa) Dr. Cynthia Herrington has a line she uses on her pediatric surgery trainees at Children’s Hospital Los Angeles when they are facing their first complicated case: “You don’t get to complain about complex anatomy.” It’s a reminder that the problem belongs to a young…