In medicine, the terminal drop hypothesis is a hypothesis that a sharp reduction in
cognitive capacity in older people is often correlated with impending death, typically within five years.[1][2]
^Siegler, Ilene C. (2007). "The terminal drop hypothesis: Fact or artifact?". Experimental Aging Research. 1 (1): 169–85.
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^White, N.; Cunningham, W. R. (1988). "Is Terminal Drop Pervasive or Specific?". Journal of Gerontology. 43 (6): P141-4.
doi:
10.1093/geronj/43.6.P141.
PMID3183309.