text: The last reason you shouldn't drive while using a cellphone because it can cause fatal injuries that might have long-term or short-term affects. The affects can be physical, emotional, or psychological. One of the most common physical effect is whiplash. Whiplash is caused by a sudden movement of the neck. Whiplash is usually caused by rear end automobile collisions. One emotional effect can be anxiety which can cause difficulties in certain situations involving driving. The last effect is psychological which can cause PTSD. Most car accidents are the results of PTSD but can also be caused by any traumatic experience. PTSD can affect a person's ability to function normally.