It is generally sensible to do a few shoulder stretches before any cardio or toning workout. During cardio we use our arms and shoulders to help power our lower body movement. The motions are repetitive, which causes stiffness. Tightening  of the shoulders and neck occurs for the same reason when lifting or using any type of weights (i.e. dumbbells, medicine balls, machines, resistance bands...etc.) or our own bodyweight  So before your next workout, take a few minutes to prepare your shoulders and neck. Try these stretches: 1. Shrug your shoulders up to your ears and hold for 5 seconds. Release. Stay relaxed for 5 seconds and start the next rep. Do 5 reps. 2. Swing you right arm backwards 5 times. Repeat with the left. Swing both arms simultaneously in a circle backwards 5 times. Do the same forwards 5 times. 3. Raise your right arm in front of you to shoulder height, keeping it straight, plam facing towards your mid line (inward). Hook your left arm around the base of your right triceps and pull the arm across your chest. Keep your shoulders low, away from your ears. Hold for 10 seconds. Repeat on the other side. 4. Interlace your hands (weave your fingers together) behind your buttocks pressing your palms until they seal. Your chest and shoulders will naturally broaden and peel back. Lift your hands away from your buttocks. Hold for 5 breaths. 5. Place your left over your head and onto your right hear. Pull your left ear towards your left shoulder without lifting that shoulder up. Extend your right finger tips towards the floor. Hold for 5 seconds. Do the left side. Now, you are ready to tart your workout and you can even repeat these after your done too!