By Evelyn Lewin it's the bird calls I notice first. Some have long, somnolent cries, others sound perkier, more vibrant. Then I watch them fly. Two small black ones seem to dance around each other. When our body is doing one thing and our head is doing another, the disconnect can be problematic. No, I'm not having some kind of bird-related epiphany. Rather, I have my five senses switched on as I go on a mindful walk. I've done this walk countless times before, but I've never really paid attention to the birds. That's because, like most people pounding the pavement, I multitask. I use that time to return phone calls or listen to podcasts. So, while my body goes through the motions, my mind is often elsewhere. I'm not the only one who multitasks when exercising, says Brisbane-based psychologist Patrea O'Donoghue from Positive Psychology Strategies. She says people often view working out as the perfect opportunity to tick off tasks on their to-do list, menta...