Medical notes this week…
If you think your hands are germ-free after you use hand sanitizer…think again. A study in the journal Science Translational Medicine finds that a few kinds of germs are developing resistance to alcohol-based hand sanitizers…and people who don’t rub their hands with them long enough are helping them along. Researchers say using sanitizer is still a good idea, but you can’t expect sanitizers to make up for sloppy habits.
A new study advises surgeons to stay away from children’s tonsils. The study in the journal JAMA Otolaryngology Head and Neck Surgery finds that removing tonsils and adenoids in childhood triples the odds of respiratory infections and allergic diseases later on. Tonsil removal is one of the most common pediatric surgeries performed worldwide, with more than 500,000 done each year on children in the U.S. alone.
A person’s biological age is often different from their chronological age…and the number of pregnancies a woman’s had can be one reason. A study in the journal Scientific Reports shows that during pregnancy, the cells in a woman’s body appear younger. But after pregnancy, that all changes. Later on, each pregnancy a woman has in her life ages her cells by as much as two years.
And finally…your sparkling water may be calorie-free…but it may still sabotage your diet. A study in the journal Obesity Research and Clinical Practice shows that carbonated water such as La Croix dramatically raises blood levels of ghrelin…the hormone that tells your brain that you’re hungry. Apparently, carbon dioxide bubbles are the culprit. Mice who drank carbonated water for a year ate significantly more than those who drank plain tap water…so they gained significantly more weight. A short study on people confirmed that ghrelin levels ended up six times higher in those drinking calorie-free carbonated water.