Health Lead story A newborn hearing screen listens in two directions A comparative history of OAE and AABR shows why newborn hearing screening paired a cochlear echo with a brainstem signal—and why neither pass result can close the case.
Health Sep. 11 A nasal rinse begins before the bottle reaches your nose An annotated viewing of University Hospital Southampton's nasal-rinsing demonstration, showing why a useful rinse depends on safe water, buffered saline, gentle flow, device drying, and correct timing before sprays or drops.
Health Sep. 11 The cloud passed. Seveso kept the evidence An event reconstruction of Seveso's 1976 dioxin release: delayed disclosure, contaminated zones, stored serum, registries, and decades of follow-up turned a brief industrial cloud into durable evidence while preserving the limits of causal inference.
Health Sep. 8 The doorway is the working edge of a negative-pressure room A causal-mechanism explainer of airborne-infection isolation: exhaust creates inward airflow, air changes dilute what stays inside, and an opening door reveals why containment, clearance, seals, monitoring, and respiratory protection are separate controls.