Head restraints in cars are improving and helping save people’s necks…literally. An Insurance Institute for Highway Safety study shows newer car models have head restraints able to provide proper protection against whiplash. The study said in 1995, three percent of cars surveyed had restraints they considered good, compared to 45 percent rated good in 2003 models. But a local doctor said the restraints can’t completely prevent whiplash, but can help decrease it. The Spinal Injury Foundation said there are ways you can help prevent injury, like keeping the head restraint in the middle of your head and wearing your seatbelt.