The appellate court noted that no substantial evidence was presented by petitioner to show that there is a reasonable connection between the nature of his employment or working conditions and his illness;22[22] and that the findings of the company-designated physicians deserve greater weight viz-a-viz the conclusion of petitioner’s private doctor which was arrived at after only one consultation. 23 [23] His motion for reconsideration of the appellate court’s decision having been denied,24[24] petitioner lodged the present petition for review on certiorari, arguing in the main that his illness is presumed to be work-related.   The petition fails.   Petitioner’s illness was already existing when he commenced his fourth contract of employment with respondents, hence, not compensable.25[25] Given that the employment of a seafarer is governed by the contract he signs every time he is rehired and his employment is terminated when his contract expires,26[26] 22[22] Id. at 190. 23[23] Id. at 191. 24[24] Id. at 210-211. 25 NYK-Fil Ship Management, Inc, v. National Labor Relations Commission, G.R. No. 161104. September 27, 2006, 503 SCRA 595. [25]