skipping breakfast causes cancer? linked to obesity even? Did the study establish a causal relationship, or is it merely observing a correlation? A longitudinal

skipping breakfast causes cancer? linked to obesity even? Did the study establish a causal relationship, or is it merely observing a correlation? A longitudinal study that tracks participants over time may provide stronger evidence than a cross-sectional study. Were other factors (e.g., smoking, exercise, diet, etc.) controlled for in the study? sounds like bullshit.