It’s a common misconception that the hair on your head will just keep growing. Just like the hair on your eyebrows, there is a limit, determined by genetics, to just how long your hair will get. For some people, a single strand of hair will grow for nearly a decade. For others, the growth will cap out at a year or so. Most people fall somewhere in between. Hair also grows at different rates, so it’s a pretty complex formula. Once a particular hair stops growing, it will only stay put for about a month, and then a new one shows up in its place.
This process is hard to see because of how humans tend to style their hair so frequently. But if one family might be able to observe it in action, it’s the Russell family. Tere Lynn Svetlecich Russell and her daughter have a combined total of almost 14 feet. Will the daughters continue this family tradition into adulthood and floor-length locks like their mother? Only time will tell.