Tension and stiffness in your lower back? 😖 The thoracic spine, or T spine, is the upper and middle section of your back that plays a crucial role in the mobility of your entire spine. 🧘‍♂️ When the T spine is tight and restricted, it can cause compensations in other areas of the body, such as the lower back. This can lead to pain and discomfort, especially during activities like deadlifts and squats. 💪 Sometimes it leads to more mobility in the lower back and in others it can cause you whole