1.Running for an hour is not ultra running
2. Myain issue is not that it will cause a heart attack or is bad gor the heart. For the majority of people its the opposite.
3. My main issue is a muscoskeletal and biomechanical issue where loading too much too quick causes injuries, hatred of exercise and many other issues. Small imjuries lead to bog injuries, poor posture, brittle bones etc which leads to falls when older. Start of slippery slope.
4. Ultra running is on another level, or indeed marathon running. If nothing else they are socially detrimental pursuits.
5 Using a marathon to lose weight is dumb when there are scientifically sounder methods.
6. Its a shit study.
7. Ultra running is just cunts with no imagination just adding challenges by just adding more and more distance. There is no excitemene in it