by John Marshall Harlan, Aetna Life Insurance Company v…
“ If the substantial cause of the death of the insured was an excessive use of alcoholic stimulants, not taken in good faith for medical purposes or under medical advice, his health was impaired by intemperance, within the meaning of the words, 'so far intemperate as to impair his health,' although he may not have had delirium tremens, and although, previously to his last illness, he had not indulged in strong drink for such a long period of time or so frequently as to become habitually intemperate. Whether death was so caused is a matter to be determined by the jury under all the evidence. ”
