Dr. Heinonen’s absolute favourite webpage is that of his PhD opponent, Dr. Michael Joyner, whose contents he strongly encourages everybody to read.
Other excellent and informative sport and exercise, or environmental science webpages are sportscientists and professor Mikko Nikinmaa’s webpages.
Furthmore, Dr. Heinonen is a member of many the following professional socities, and he strongly supports their goals and missions and encourages to read more about these socities and information they provide:
European Society of Cardiology and its preventive medicine/cardiology section
American Heart Association and its preventive medicine/cardiology section
Scandinavian Physiological Society
American Physiological Society
American College of Sports Medicine
European College of Sport Science
Finnish Society of Sport Sciences