Life expectancy in the United States has reached an all-time high. An individual born in 2009 has a life expectancy of 78 years, according to a preliminary CDC report. The death rate has declined for the 10th year in a row and infant mortality is expected to reach a new low, as well. Deaths from all causes declined proportionately, making it difficulty to distinguish a single explanation for decrease. The gender difference in lifespan persists, with the overall male life expectancy at around 75.5 and the overall female life expectancy at about 80.5.