The advantage

So what is the medicare advantage. I keep hearing about it. Obviously I'm not quite old enough for things like medicare, but that doesn't stop me from being curious about such things. I guess I'll have to do some research and satisfy my curiosity. I'm just one of those people who is always curious, researching things, reading things. I like to have lots of knowledge of a subject before I make a decision or a purchase or whatever. It kind of drives my husband crazy. LOL