While most people experience fewer problems with the fall time change than when “springing forward” in March, any change to your normal sleep routine can be disruptive, says Oscar Schwartz, MD, BJC Medical Group sleep disorder specialist and medical director of the Barnes-Jewish West County Hospital Sleep Disorder/EEG Center. Inadequate sleep is associated with memory decline, difficulty in concentration, decreases in mental and physical performance, mood swings, irritability, depression, stress, high blood pressure, weight gain and automobile accidents. It’s also associated with a host of other health problems, including heart disease, stroke, and dementia.