A woman is walking on a treadmill in a gym. She is holding a phone in her right hand, using it to take a selfie. She has long dark hair in a ponytail, and is wearing a light green t-shirt, black leggings, and light-colored sneakers. She is looking at the phone screen. The treadmill is black and has a digital display. The gym has other exercise equipment and people working out in the background. The floor is wood-look laminate. There are mirrors on the walls of the gym.