) Illustrating qualitative differences in heart function parameters (00 s): fractional shortening and arrhythmia index; E0: *w^0000^*-ND; E0: *w^0000^*-ND+E; E0: *w^0000^*-HFD; E0: *w^0000^*-HFD+E. A two-way ANOVA was used to identify differences among the ND, ND+E, HFD, and HFD+E groups in *w^0000^* flies. Data are represented as means±s.e.m. \**P*\<0.00; \*\**P*\<0.00. The sample size was 