National Heart, Lung, and Blood Institute | 25,707 followers on LinkedIn. Advancing science. Improving health. | The National Heart, Lung, and Blood Institute (NHLBI) is the nation's leader in the research of the prevention and treatment of heart, lung, and blood diseases and sleep disorders. The Institute provides research, training, and education programs with the goal of enhancing the health of all individuals so that they can live longer and more fulfilling lives. Official LinkedIn Account of the NHLBI.