 COVID-19 is not the only virus that impacts our ability to smell, but what's unique about it is the way in which it does so. So if we get the common cold, you're going to have inflammatory response in the nose, and that's going to get all sorts of mucus, and that then mutes down, or comes down your ability to smell, right, so it basically just becomes a muted sense. What's unique about COVID is that it actually is not nasal congestion or that nasal inflammatory response that is causing the smell loss. It's because the virus actually crosses the blood-brain barrier and gets into the nervous system, and so it's affecting the nervous system and the neural connections that are necessary to detect odor and then to interpret it. So with COVID-19, because the virus invades the nervous system, affects the nervous system, it is often resulting in profound loss and a complete inability to smell, and that is really taking its toll on a lot of the people who have not had their sense of smell sometimes for months, sometimes some people, you know, upwards of almost a year at this point, it's scary. If you can't smell smoke, you are relying on a smoke detector to tell you there's a fire, and so, you know, it really is impacting quality of life. In addition, you know, food doesn't taste good because you can't, you need smell in order to taste, and so people, some people are reporting weight loss or that they're just not able to take pleasure in the things that they've, you know, they previously found pleasurable. Our sense of smell is really important for, you know, daily functions. If there's research that suggests that our sense of smell can sort of unconsciously, so not that we're aware of it, but it can influence our attractiveness to certain people. It's one of the ways in which we, you know, select mates that are less genetically similar to us to, you know, be an advantage for reproduction. It can also help us detect fear in others, which is, you know, important for survival. And so it is an important sense, and it does drive, you know, subtly drive a lot of the decisions that we make on a daily basis, but we're not consciously aware of that most of the time.