"Even pernicious habits, insalubrious air, &c. must be abandoned with great caution--or we shall thereby hasten the end of our Patient."--STRUVE'S _Asthenology_, p. 398. [25] "Those who have lived longest, have been persons without either Avarice or Ambition, enjoying that tranquillity of Soul, which is the source of the happiness and health of our early days--and strangers to those torments of mind which usually accompany more advanced years, and by which the Body is wasted and consumed."--_Code of Health_, vol. i. p. 60-63, &c. "In the return made by Dr. ROBERTSON, (and published by Sir JOHN SINCLAIR, in the 164th page of the second volume of the Appendix to his Code of Health,) from Greenwich Hospital, of 2410 In-Pensioners, ninety-six--_i. e._ about one-twenty-fifth are beyond eighty--thirteen beyond ninety--and one beyond one hundred. They almost all used _Tobacco_--and most of them acknowledged the habit of _Drinking_ freely. Some of them had _no teeth_ for twenty years--and fourteen only had good ones--one who was one hundred and thirteen years old, had lost all his Teeth upwards of thirty years. "The organ of _Vision_ was impaired in about one-half--that of _Hearing_ in only one-fifth: this may be accounted for--the _Eye_ is a more delicate organ than the _Ear_--and the least deterioration of its action is more immediately observed.--Of the _ninety-six_ they almost all had been married, and _four_ of them after eighty years of age--only nine were Batchelors--this is a strong argument in favour of Matrimony. "_The Best Ages for Marriage_, all other circumstances being favourable, are between the eighteenth and twenty-fifth year for Females, and between the twenty-fifth and thirty-sixth for Males. The body is then in the most complete state to propagate a healthy Offspring--the Ages when the prolific powers begin to cease in both sexes will nearly correspond--and the probable expectation of Life will be sufficiently long, for parents to provide for their children."--JAMESON _on the Human Body_, p. 336. [26] "Regular and sufficient Sleep, serves on the one hand, for repairing the lost powers, and on the other, for lessening consumption, by lessening vital activity. Hence the lives of people who are exposed to the most debilitating fatigue, are prolonged to a considerable age, when they enjoy Sleep in its fullest extent."--STRUVE'S _Asthenology_, 8vo. 1801, p. 199. [27] "It is a perfect barbarism to awake any one, when Sleep, that "balm of hurt minds," is exerting its benign influence, and the worn body is receiving its most cheering restorative."--_Hints for the Preservation of Health_, 12mo.