Too much artificial light can affect sleep patterns and make for even groggier mornings. The sun’s natural light helps to synchronize the body's internal clock. This can help turn night owls into early risers. Unlike a clock on the wall, the body’s internal clock is flexible. It can change depending on how much light is around it — which includes the light from cellphones or computers. Staring at a screen late at night can shift the body’s inner clock and lead to later bedtimes. Hitting the hay at a consistent time each night and turning off any artificial light may keep the body’s clock consistent.
