The simple step of taking a daily multivitamin during pregnancy can reduce the risk of autism in newborns by 38 percent, report Chinese researchers that analyzed nine studies of 231,163 children, of which 4,459 were diagnosed with autism spectrum disorder. Another study from Kings College, London, of 1,555 obese, pregnant women, concluded that when they improved their diet and exercised, their children three years later had an average resting pulse rate of five beats per minute lower than the other children, a better glycemic response and slightly less obesity. Israeli research, published in the online journal Sleep, involving 116 men ages 21 to 59, found those that used smartphones and tablets in the evening and after bedtime had lower sperm quality with reduced counts and motility. Watching TV, another light-emitting source, during the evening also correlated with lower sperm concentration.