Heart disease at the genetic level; common cold lingers; teens need sleep – Morning Medical Update

Genes and heart disease

New genetic research could shed light on what’s happening at a genetic level for patients with cardiovascular disease, the leading cause of death worldwide. Scientists in Brazil and the United States have identified 87 genes that influence blood pressure and 144 affecting heart rate – when only a dozen and 17, respectively, were known before. “The discovery extends our knowledge of the genetic pathways that lead to regulation of blood pressure and heart rate, and will therefore help deepen our understanding of cardiovascular disease,” one researcher said.

Sneezing, runny nose and AMR

How long do you think a common cold should last? Clinical app Epocrates used a survey to ask that question to American adults, and about their thoughts on using antibiotics to treat cold symptoms. Read about this physician’s response – and why patients might be more understanding than you realize about antimicrobial resistance.

Teens, sleep and school

Teens who stay up late and have irregular sleep patterns are likely to have worse grades and more school-related behavioral problems, according to new research supported by the National Institutes of Health.