As the spine moves forward, exhalations become your friend. As you hold a forward fold, you’ll notice that every breath in floats you slightly up, then every breath out will settle you deeper. Notice that exhalations can encourage you to round your upper and mid-back. Be careful with this movement, as too much forward flexion can be rough on the spine and disks. Keeping a longer spine is generally a good idea—even if that means you don’t fold very far forward.