Lenny | Fitness & Mobility Coach on Instagram: "Want to improve your posture? Save this video and do these daily! Good posture isn’t about looking stiff or “standing up straight” all day — it’s about how well your body is aligned to move, breathe, and function 💪🧠 When posture breaks down, muscles become overworked, joints take unnecessary stress, breathing becomes shallow, and aches slowly turn into chronic pain 😮‍💨 Over time this can affect energy levels, performance, digestion, and even co