"I look forward to the experience of shutting down and fading away," which I hope could be easily disillusioned by gaining knowledge about how truly undignified dying is, bloody romanticists.

I agree that people under this illusion could definitely benefit from knowledge of deconstructing death into it's component bits.

In case anyone wants to have a list of some of the top worldwide causes of death, all of which seem difficult to argue for, I've put Wikipedia's below: (Note, due to how Wikipedia has displayed this information, some of these are subsets of each other, such as Ischemic heart disease being a type of Cardiovascular disease):

1: Cardiovascular diseases

2: Infectious and parasitic diseases

3: Ischemic heart disease

4: Malignant neoplasms (cancers)

5: Cerebrovascular disease (Stroke)

6: Respiratory infections

7: Lower respiratory tract infections

8: Respiratory diseases

9: Unintentional injuries

10: HIV/AIDS

11: Chronic obstructive pulmonary disease

12: Perinatal conditions

13: Digestive diseases

14: Diarrhea diseases