So maybe it's a good thing Americans are becoming more buoyant? I'm joking of course, although the number of unintentional drownings in the US has been droppin

So maybe it's a good thing Americans are becoming more buoyant? I'm joking of course, although the number of unintentional drownings in the US has been dropping steadily since the 80s, and researchers have not been able to fully explain the cause...[1] [1]: http://jama.jamanetwork.com/article.aspx?articleid=190416 http://jama.jamanetwork.com/article.aspx?articleid=190416