text: According to statistics using a cell phone while driving delays driver's reaction time, using a cell phone reduces their visual scanning of the road ahead, and have a higher chance weaving through their lane and are slower to respond to hazards. A study found that hand-held phone can delay by 46%, sending a text slows it down by 37%. By comparison using cannabis slows it down by 21%, and drinking to the legal amount by 13%. An average time to reply to a text message is 4.6 seconds and while going 45-55 miles per hour that's enough to cover a soccer and football field. Studies show that a person of the age of 20 reaction time slows down while being on the phone is as equal as a 70 year old man.