Answer by taking a quote from the following article:

Stallone was born in the Hell's Kitchen neighborhood, of Manhattan, New York City, the elder son of Frank Stallone, Sr. (1919-2011), a hairdresser and beautician, and Jacqueline "Jackie" Stallone (nee Labofish, born in 1921), an astrologer, former dancer, and promoter of women's wrestling. Stallone's father was born in Gioia del Colle, Apulia, Italy, and immigrated to the United States in the 1930s. Stallone's mother is of half French (from Brittany) and half Ukrainian Jewish (from Soviet Union, Odessa) descent.

Stallone's debut as a director came in 1978 with Paradise Alley, which he also wrote and starred in. In addition, he directed Staying Alive, the sequel to Saturday Night Fever, along with Rocky II, Rocky III, Rocky IV, Rocky Balboa, and Rambo. In August 2005, Stallone released his book Sly Moves which claimed to be a guide to fitness and nutrition as well as a candid insight into his life and works from his own perspective. The book also contained many photographs of Stallone throughout the years as well as pictures of him performing exercises. In addition to writing all six Rocky films, Stallone also wrote Cobra, Driven, and Rambo. He has co-written several other films, such as F.I.S.T., Rhinestone, Over the Top, and the first three Rambo films. His last major success as a co-writer came with 1993's Cliffhanger. In addition, Stallone has continued to express his passion in directing a film on Edgar Allan Poe's life, a script he has been preparing for years.  In July 2009, Stallone appeared in a cameo in the Bollywood movie Kambakkht Ishq where he played himself. Stallone also provided the voice of a lion in Kevin James' comedy Zookeeper. Stallone has also mentioned that he would like to adapt Nelson DeMille's novel, The Lion's Game, and James Byron Huggins's novel, Hunter, for which Stallone had the film rights several years; he originally planned to use the plot from Hunter for Rambo V. In 2009, Stallone expressed interest in starring in a remake of Charles Bronson's 1974 film Death Wish.  There are plans for a fourth film in The Expendables series that will conclude the saga.

What types of advice did he give in Sly Moves?
fitness and nutrition