A common myth is that spinal injuries would permanently disable a person. After a spinal injury, there are some quadriplegics (paralyzed in both hands and feet) begin to recover their ability to walk. This is enhanced more if the patient undergoes regular therapy. Another popular belief is that smooth helmets reduce such injuries by allowing your head to slide the road rather than suddenly stop because of friction. This is found to be false by researchers since helmets on injuries versus to those who are not wearing helmets don’t statistically differ significantly in values.