lline of the pulse with man lifecycle from birth to old age in silhouettes.

adult age ageing beat birth cardio cardiogram cardiograph cardiology care childhood cycle death development doctor ekg electrocardiogram evolution figure from grow growing health healthcare healthy heart heartbeat hospital illustration image infant insurance life lifecycle line lline man medical medicine monitor old people process pulse pupil rhythm safety sign silhouettes silhouettesvector stages student study symbol vector vitality wave work young