Adding an o to a word often creates a whole different word, which may or may not be a nonsensical one. But sometimes—like the great possum-vs.-opossum debate—it’s a little less straightforward.

For people with lupus, reoccurring, persistent or longer-lasting episodes of High Disease Activity Status (HDAS) is linked to an increased risk of organ damage accrual. HDAS is defined as having a ...

Vaginal thrush, or a yeast infection, is one of those things that you can refer to, sarcastically, as "part of the joy of being a woman". They're incredibly common, with up to 75 percent of women ...