Len Horovitz, MD, an internist and pulmonary specialist at Lenox Hill Hospital and director of Carnegie Medical PC, a private practice, both in New York City. New York Magazine has included him among “The Best Doctors in New York” for both pulmonary and internal medicine. He is a contributor to the medical anthology The Singer’s Guide to Complete Health.
Perhaps climbing a flight or two of stairs has never really affected your breathing—until now. Or maybe you notice that…
