Beyond aesthetics, poor posture can also lead to chronic pain, most commonly lower back pain.
Sometimes gravity is the best form of resistance in your training.
Back pain is one of the most commonly grumbled about training, and life, annoyances.
Learn the fundamental shapes for control, strength, well-roundedness, and sustainability.
There's a more productive option to start your day than blasting your face with social media and sprinting out the door.