Walking with your baby in a sling; good workout or back for your back?

Depends. Depends on what kind of sling you have. (some have been recalled) and how big your baby is. I would only use a carrier that is appropriate for your child´s age and weight. Baby wearing is great, and there are carriers designed for different uses. Never use a sling or carrier that make it difficult for your baby to breathe, make sure his chin is never against his chest.