To Have and Have Not (film) 1944. Bogart and Hawks served as their own technical advisers, because of their experience with fishing and sailing. After filming began, a romance developed between Bogart and Bacall, despite Hawks's disapproval. Bogart was married and at 45 years old, he was more than twice Bacall's age. They kept their relationship a secret from Hawks. This romance eventually led to Bogart divorcing Mayo Methot, his third wife. He and Bacall married a year after "To Have and Have Not" and remained married until Bogart's death in 1957. Hawks expanded Bacall's part to take advantage of the Bogart-Bacall chemistry. According to the
Sleep and breathing of atonia of the pharyngeal dilator muscles and partial airway collapse. Many studies have shown this, but not all. Some have shown unchanged airway resistance during REM sleep, others have shown it to increase to NREM levels. Hypoxemia due to hypoventilation is noted in REM sleep but this is less well studied than NREM sleep. These changes are equal to or greater than NREM sleep Pulmonary arterial pressure fluctuates with respiration and rises during REM sleep. Arousals cause return of airway resistance and airflow to near awake values. Refer arousals in NREM sleep. Snoring is a condition characterized by noisy