A look at the top medical headlines for the week of March 28, 2021 including: About 10 percent of people will have a kidney stone at some point in their lives. When it happens, doctors may want to check for Osteoporosis, too. Then, more evidence that a vitamin d deficiency may leave you more susceptible to COVID. And finally… a lot of people take a probiotic to improve their gut health, but a new study suggests… try avocados instead.