@Alan ************
You can only be careful in your choice, firstly using broad indicators as I gave, then looking at fine detail, perhaps especially around dangerous sports. People routinely bungee jump, but it is mostly categorised as a dangerous sport. Mountaineering and rock climbing can be an outright No or dependent on exactly what is planned and using what equipment. All this said, which should be obvious, people do as the insurance companies do and look at heart risk with age, stroke risk with age, etc and try to see a relationship with health to date. Certainly that has some truth. But consider the very high rates of death and injury in Thailand in motor vehicle accidents, including as a pedestrian. Sure it could be that responsiveness reduces with age, but truth is that insurance companies tend to take those on the nose, although a hugely important category. On the road accident an important point is do you think that the rudimentary emergency services here will pick you up without an insurance card. Ditto the hospital take you in (legally they have to but that is often not understood. Cough!!!!! - its Amazing Thailand, including such amazing language misunderstandings!). So you carry around a credit card and can genuinely access large amounts that way (and they need to be large). Now how is the risk management looking? Or do you want to be left in the road - it can and sometimes does happen: the care obligation at law, as best I understand, only laying with the hospital.