I do refer on this as the most important thing for wealth to be health, if a person is healthy, then he is such a wealthy person, because those that are not feeling well know the predicament they are passing through which money can't buy, we have to cherish more on what we have, let everyone take good care of themselves because that is the only wealth that has been given unto them as an inheritance by nature and not the type that man sell or charges for.
Health can have a downward spiral if it starts going down.
Stressful life>Chronic ailments>increasing bills>Less savings - hence health should be made a priority for those who are doing sedentary jobs or working from homes.
I think it is a part of the entire investment altogether even though it is not visible from the outside it makes a huge impact on the long term goals. A good health and less the costs simple logic.