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Want to build better posture? Then you should work your rotator-cuff muscles, all from the comfort of your couch

Lie on your side on the couch and put a pillow under your head, so that your neck is in line with your spine. Hold a light object in your top hand – a small book will work – and bend that arm at 90 degrees to your elbow.

Carrie Cockburn/The Globe and Mail

1 of 2

Use your elbow as a pivot as you push your arm as far back as it will go, then bring it slowly down across your body. Repeat 15 times, then switch arms and repeat.

Carrie Cockburn/The Globe and Mail

2 of 2

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