She came walking around the bend instead of running. What a surprise! She loves her runs. But she thought she had an injury. Probably nothing. Better to take it easy just in case. Then she got the news. A fractured tibia. A run back in November probably did her in, but she didn’t realize it because it didn’t hurt. She didn’t have the normal warning system most people have due to loose joints.
Warning systems are designed to pick up specific issues. Over time, conditions change and warning systems need to be re-calibrated to pick up problems anticipated in the current environment. When was the last time you checked to make sure your warning systems are up to date?