Dryden

'The first physicians by debauch were made; Excess began, and sloth sustains the trade. By chase our long-lived fathers earned their food; Toil strung the nerves and purifyed the blood; But we their sons, a pampered race of men, Are dwindled down to threescore years and ten. Better to hunt in fields for health unbought, Than fee the Doctor for a nauseous draught, The wise for cure on exercise depend; God never made his work for man to mend.' Dorothy has taken to walking a great deal. All around London wherever possible. I read the above in 'Days with Sir Roger de Coverley' by Addison and Steele from the Spectator.