( ( ( ( Stressors-like toxins ) , ) ( ( ( ( pollutants , ) oxidants ) , ) ( chemicals ( in ( ( ( processed foods ) , ) ( radiation ( , ( depression ( , ( and fatigue ) ) ) ) ) ) ) ) ) ) ( ( ( are now ) ( thought ( ( ( the cause ) ( of ( DNA mutations ) ) ) ( that ( produce cancer ) ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Stressors-like) (NNS toxins)) (, ,) (NP (NP (NNS pollutants)) (, ,) (NP (NNS oxidants)) (, ,) (NP (NP (NNS chemicals)) (PP (IN in) (NP (NP (VBN processed) (NNS foods)) (, ,) (NP (NN radiation) (, ,) (NN depression) (, ,) (CC and) (NN fatigue))))))) (VP (VBP are) (ADVP (RB now)) (VP (VBN thought) (NP (NP (DT the) (NN cause)) (PP (IN of) (NP (NN DNA) (NNS mutations))) (SBAR (WHNP (WDT that)) (S (VP (VBP produce) (NP (NN cancer)))))))) (. .)))
Stressors-like toxins, pollutants, oxidants, chemicals in processed foods, radiation, depression, and fatigue are now thought the cause of DNA mutations that produce cancer.
(ROOT (S (NP (NNP Cancer)) (VP (VBZ is) (VP (VBN caused) (PP (IN by) (NP (NP (NNS mutations)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (MD can) (VP (VB be) (VP (VBN caused) (PP (IN by) (NP (NNS pathogens) (, ,) (NNS chemicals) (, ,) (CC or) (NN radiation)))))))))))) (. .)))