What is Chronic Obstructive Pulmonary Disease, or COPD? Leonard Nimoy Died from Smoking

Leonard Nimoy, of Mr. Spock fame, died on Friday at age 83. He suffered from chronic obstructive pulmonary disease, or COPD, caused by smoking cigarettes.

Leonard Nimoy, of Mr. Spock fame, died on Friday at age 83. He suffered from chronic obstructive pulmonary disease, or COPD, caused by smoking cigarettes. Photo by Eric Charbonneau/Invision/AP