Depending on the degree of injury,for the first two categories of nervous injury neuropraxia and axonotomesis, the myelin sheath and axons are usually severed not the cell body. The interest of the researchers will be to then increase growth and rate of regeneration of the axons which is usually 1mm per day
Because they are either ignorent and do not understand what they are doing or they do not see theirs lives as wonderful, they are trying to escape something that is going on that they do not want to deal with
