TNF and breast carcinoma: In this study, we enrolled stage II/III breast cancer patients and measured the levels of pro-inflammatory cytokines (TNF-α, IFN-γ, GM-CSF) and oxidative stress markers (antioxidant enzymes: SOD and catalase, pro-oxidant: MDA and NO) in the serum along with QoL and symptomatic scale at baseline, 16, 32, and 48 weeks and compared them with patients who were not performing the yoga.