You can do this exercise without even getting off the sofa – and before your TV show comes back from break
Start by bringing your bum close to the edge of the sofa. Keep your back straight and lean roughly 10 degrees backward. Cross your arms over your chest and lift both legs up to hip height.Carrie Cockburn/The Globe and Mail
Hold this position while you rotate your chest side to side 20 times.Carrie Cockburn/The Globe and Mail