When building upon previously available sets of knowledge and information, in the series of steps, at some point, earlier steps might wind up getting discarded; an unfortunate result could come about, which is the information in that step which might have seemed appropriate to remove at the moment it was, could actually become 'lost', and even though valuable later, time can be spent going around and around in circles looking for solutions that were already written.
Case in point, is diagnosing and making sense out of the conditions of individuals that have undergone phases of hunger, and been exposed to different climates in combination with that.
In today's era, post year 2020, many people might just consider that after not eating for 3 consecutive days, an individual is subject to being in an emergency condition and susceptible to possible death.
Days and days, doctor after doctor, hospital after hospital trying to figure out, how someone in advanced years of life manages to go several times that length of time with only near starvation levels of food and drink, and moreover present abilities that might appear as superhuman, can go on these days.
Are those grounds really necessary when the information has already been written, long ago.
Here are a couple of pictures uploaded from a pre-1900 book on physiology. For the sake of time and doability, I'll do my best to upload as possible, and revise for aesthetics later.
Book named after the author... Physiology...
In the near future when time allows, there may be more content added to this post, such as differentiating perceived states of 'fana' or 'closeness' from the medical condition of hysteria.
Another set may be scenarios on the subject of taking care of seniors, for instance, folks 70 to 90 years old that may feel that they are doing well by drinking only a small 4 ounce cup of tea a day, in a well air-conditioned house. It goes on for weeks until one summer day they go for a walk, and either option a or option b happens.
Option a, they drop to the ground from dehydration. Option b, they want more, back to back soccer games, chop a forest fine with an ax, build a structure brick by brick, going for it seems like days with no fluid intake. Eventually they might drop without intervention. Option b may lean more to hysteria.
It doesn't mean the person is possessed nor on drugs, it's the normal symptoms of a somewhat abnormal situation.
For the victim and the bystander, the moms and fathers and their kids to know these going in ahead of time, can save a lot of unnecessary drama and unwisely spent time, as well as huge amount of money.
Wise words, stay properly hydrated.