1. Assessing physical condition: Serious heart conditions, joint problems, and skeletal injuries can hinder the benefits of running. 

2. Warming up: Many people neglect this step and risk injuries. Learn proper warm-up techniques to avoid this.

3. Time management: Running after 40 requires time management.

Recognize the benefits of running but pay attention to duration. Both excessively short or long running times are not beneficial.

4. Body protection: Ensuring proper body protection is crucial. If you have vulnerable knees, use knee protectors to prevent injuries.