Public Health News Roundup: March 13
NIH: Cardiovascular Benefits Outweigh Small Weight Gain for Former Smokers
When it comes to health, the small amount of weight someone can gain after quitting smoking is inconsequential compared to the improvement in cardiovascular health, according to a new study in the Journal of the American Medical Association. Researchers from the National Institutes of Health found that current smokers were at twice the risk of developing cardiovascular disease as were former smokers without diabetes. “Our findings suggest that a modest weight gain, around 5-10 pounds, has a negligible effect on the net benefit of quitting smoking,” said study co-author Caroline Fox, MD, MPH, senior investigator in the Laboratory for Metabolic and Population Health at the NIH’s National Heart, Lung, and Blood Institute (NHLBI). “Being able to quantify to some degree the relationship between the benefits and side effects of smoking cessation can help in counseling those who have quit or are thinking about quitting.” Read more on tobacco.
FDA: Antibiotic Azithromycin Can Cause Fatal Irregular Heart Rhythm
The antibiotic azithromycin, also known as Zithromax, can lead to a potentially fatal irregular heart rhythm by changing the heart’s electrical activity, the U.S. Food and Drug Administration (FDA) has warned. The FDA is cautioning physicians to be wary of certain risk factors when prescribing the antibiotic, including low levels of potassium or magnesium, a slower-than-normal heart rate and the presence or other drugs to treat abnormal heart rhythms. Read more on heart health.
Study: Breast-feeding has No Effect on Weight Later in Life
Despite previous studies suggesting a possible link, breast-feeding does not reduce the chances that a child will grow up to be overweight or obese, according to a new study in the Journal of the American Medical Association. Still, breast-feeding does bring several health benefits, including a reduced risk of gastrointestinal and respiratory infections; a higher IQ; and lower incidence of eczema. It also reduces the risk of breast and ovarian cancer in the mother. "Although breast-feeding is unlikely to stem the current obesity epidemic, its other advantages are amply sufficient to justify continued public health efforts to promote, protect and support it," said the study's lead author, Richard Martin, a professor of clinical epidemiology at the University of Bristol in England. Read more on infant and maternal health.