Decreased blood flow to the kidneys causes them to release antinatriuretic hormones. Antinatriuretic hormones are angiotensin II andaldosterone. Angiotensin II stimulates release of ADH and aldosterone,while aldosterone<span> functions in the regulation of sodium and potassium elimination.</span>
-Stress
-PTSD mental disability (if they saw something disturbing)
-They could be injured (a telephone pole hit em, etc.
-They could not have sufficient nutrition sometimes (shortage of food)
-They would be in shortage in water so that is a big problem because they wouldn't be getting their daily amount of water intake (8 cups)
Answer: C. David feels sad for a long period, even when something good happens.
Explanation: i felt like that.. so they decided i needed a therapist... funny cause my friend David helped me through those tough days.