If you're referring to water, it's not required that you drink 8 glasses, just enough that you keep yourself hydrated.
Adenine, guanine, & cytosine | uracil & thymine
Just choose either of these- precipitants/co-existing illnesses (trauma, infxn, pancreatitis, etc), comorbid medical & psych dx (suicidality), iatrogenic causes (evolution of sx while hospitalized), previous hx of AWD, dehydration, electrolyte & vitamin deficiencies
They go like chains in sides but they are attached to a the main chain.
They have one starting point"Main Chain"and ends in many endings.