Is running a marathon safe? Can anyone just get up and run the marathon? Is it good for your heart? Are there any precautions you should have keep in mind? These are some of the more common questions that people often have about running in general and the marathon. Dr Aashish Contractor Medical Director of the Mumbai Marathon and an avid runner give us some tips and pointers. A person should keep his health profile in mind before taking up long-distance running. People who suffer from any of the following conditions should avoid running: Uncontrolled chronic diseases: Uncontrolled kidney disease