In the long term, premature birth may lead to these complications: 1  Cerebral palsy. 2  Cerebral palsy is a disorder of movement, muscle tone or posture that can be caused by infection, inadequate blood flow or injury to a preemie's developing brain either during pregnancy or while the baby is still young and immature.
Before you even think about welding, make sure you have the right gear, including fire resistant jacket, safety glasses, welding gloves and an approved welding helmet. Helmets have come a long way in recent years.
If your stupid enough to ground the MIG at one end of the car and weld at the far opposite end,...well I guess it's possible but I have never seen any damage from it. An older fellow I used to work with swore up and down that electrical welding on a car will align all the ring gaps in the engine .