You were walking Coogee Beach every morning in February. Now you haven't moved in three weeks. Here's why — and it's not your fault. Many Sydneysiders pride themselves on staying active outdoors, enjoying beach walks, runs, and weekend sports. But when June arrives and the morning air turns crisp, that routine quietly fades. This drop in activity is often blamed on laziness or lack of motivation, but the reality is rooted in biology. Winter fatigue is a common experience, esp