“Health is wealth is an old proverb, and a version of it is “Folks spend their health to acquire wealth and later spend their wealth to regain their health.” “Janesville people oft spend their health to acquire wealth—and then again their wealth to regain their health” was cited in print in 1899. “Some men lose their health while acquiring wealth, then lose their wealth trying to acquire health” was cited in print in 1905. No particular author of the saying has been credited.
 
 
10 March 1890, Atlanta (GA) Constitution, p. 3, col. 4 ad:
HEALTH IS WEALTH.
You must have health to acquire or enjoy wealth. Without health it is an uphill business to accumulate wealth or even make a living; and the wealth of a Vanderbilt or an Astor would be a thankless ift without health to enjoy it. S S S is the great tonic and blood purifier to preserve good health, ...
 
14 June 1899, The Daily Gazette (Janesville, WI), pg. 8, col. 3 ad:
TO BE WEALTHY-FIRST BE HEALTHY
It has been said—and we fear it’s true—that Janesville people oft spend their health to acquire wealth—and then again their wealth to regain their health, and lack of exercise is at the bottom of it.
(Lowell Bicycles—ed.)
 
22 August 1905, Kalamazoo (MI) Gazette, pg. 2, col. 6:
Some men lose their health while acquiring wealth, then lose their wealth trying to acquire health.
 
Chroniclin America
11 September 1905, The Daily Ardmoreite (Ardmoreite, OK), p. 6, col. 1:
Some men lose their health while acquiring wealth, then lose their wealth trying to acquire health.
   
Google News Archive
18 May 1952, Lewiston (ID) Morning Tribune, “Nuts to You,” pg. 6, col. 7:
Some men lose their health getting wealth, and then lose their wealth regaining their health.
 
Google Books
A Dictionary of American Proverbs
Edited by Wolfgang Mieder, Stewart A. Kingsbury and Kelsie B. Harder
New York, NY: Oxford University Press
1991
Pg. 473:
Folks spend their health to acquire wealth and later spend their wealth to regain their health. Rec. dist.: Ont.