Weight gain and loss cycles, such as those experienced during pregnancy, can lead to a thinner face even if pre-pregnancy weight is regained.

“So, they'll come in and they'll see me and I can look at their face. Let's say they're in their late 30s, early 40s, and I can guess how many kids they've had because what happens is you gain weight in pregnancy. It doesn't have to even be a lot, but then most people, if they're fit, they lose that post pregnancy weight. And I've had none, by the way, just in case you were wondering. That's good to know. Um, and then they lose that post pregnancy weight. And what happens is they go back to being the same weight that they were before they got pregnant, but their face is thinner.”