The Big Sleep (1946 film) war. Bacall's agent, Charles K. Feldman, asked that portions of the film be re-shot to capitalize on their chemistry and counteract the negative press Bacall had received for her 1945 performance in "Confidential Agent" which was released prior to "The Big Sleep" even though produced after it. Producer Jack L. Warner agreed, and new scenes for "The Big Sleep", such as the sexually suggestive racehorse dialogue, were added (scripted by an uncredited Julius Epstein). The re-shot ending featured Peggy Knudsen as Mona Mars because Pat Clark, the originally cast actress, was unavailable. Furthermore, the parts of James Flavin and Thomas
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