Is this a medical diagnostic tool?
No. It is an educational representation of a traditional Chinese medical theory model. It does not diagnose or recommend treatment.
Are these organs the same as biomedical organs?
No. Traditional Chinese medical organ-meridian systems are broader functional categories and do not map directly onto modern anatomical organs.
Does waking at 3 AM prove a Lung problem?
No. You may record observations, but the tool must not infer deficiency, excess, or disease from a time pattern.