Comfort zones are critical. They let us replenish energy levels, shore up confidence, and relax. Without them, we’d probably operate in a state of manic stress or utter exhaustion. And that’s not good for anyone. But neither is shrink-wrapping yourself in safety.
Try something different every now and then to expand your world. It helps to start small (take a new route to work; attend a half-day conference) and feel your enthusiasm for the unfamiliar build.
One of our favorite stories about pushing limits is the extreme case of James Bradley, who was told after his surgery that sport activities were no longer in his future. That was not a safety zone he would stay in.