Mojo Wang Last week, I arrived home to bad news about a sick relative. I took medication for a chronic gut condition and surveyed the mess around my house before heading to the gym, where I lifted weights until my limbs shook. Later that evening, I felt a jolt of adrenaline after receiving a challenging contract for my new business. In short, I was stressed. But, reflecting on the day, I realised that the stress I had experienced wasn’t all the same. There had been the sharp spike of bad news, the slow simmer from illness, the physical stress of exercise and even a curious kind of positive stress from the work opportunity. Some instances felt draining; others energising. Scientists are increasingly recognising that these distinctions matter. Stress is linked to many of our major killers, from heart disease to depression. Yet emerging research is challenging the conventional view of stress as solely detrimental. In certain contexts, it can sharpen the mind and strengthen your body.…