All Sauce from Weekly Sauce:

For much of the COVID-19 pandemic, doctors have told patients who get a negative result after taking a rapid antigen test at home to test again 48 hours later. A new study confirms that’s the right advice. Whether you have symptoms or not, repeat testing after 48 hours may be required to rule out COVID…  read on >  read on >

Like people, dogs slow down as they age. Researchers wondered whether slowed walking could also signal mental decline. To learn more, they did a series of experiments that included measuring the dogs’ speed both on and off leash as well as cognitive testing. “Walking speed in people is strongly associated with cognitive decline,” said study…  read on >  read on >

Older American adults who live in warmer regions are more likely to have serious vision impairment than those who live in cooler places, new research finds. Living with average temperatures of 60 degrees Fahrenheit or above — think South Florida, for example — created much higher odds of blindness or trouble seeing even with glasses,…  read on >  read on >

As you stare down your freshman year of college and contemplate living away from home, you’re probably facing a few “firsts”: First roommate who isn’t a sibling; first time fending for yourself to make sure you’re eating properly; and if you have nasal allergies, food allergies or asthma, this could be the first time you’re…  read on >  read on >