Rabbi Simcha Bunim Alter (born 1898 CE, died 1992 CE:)
was the fifth Rebbe of Ger from 1977 CE to 1992 CE.
He was known as the Lev Simcha after a book he authored.
Rabbi Simcha Bunim said:
“I was a smoker, and with me it was not for gashmius.
When I found out that it was harmful, I promptly discontinued it.”
SOURCE: Jewish Action: Magazine of the Orthodox Union, Spring 1995 CE, page 7