The 27-year-old actress tweeted a photo of herself swimming in the Dead Sea, a salt lake in Israel, and looked quite content. "Swimming in the Dead Sea!!!" she captioned the happy photo. "One of the most incredible things I've ever done #HandsDown."
In May, Panettiere -- who has a 1-year-old daughter, Kaya, with her fiance, Wilmer Klitschko -- sought treatment for postpartum depression, not long after it was announced that NBC was canceling Nashville. The show will now continue on CMT, and Panettiere appears to be working through her issues as she's shared several happy, healthy twitpics over the past few months.
"What I thought postpartum was, was wanting to cause your child harm," she told ET in August 2015. "You know, that really severe version of postpartum. Now, having had a child, I've realized that it can be on quite a large spectrum, and the symptoms don't have to be as in your face and obvious."