Dehydration can cause seizures as severe imbalances in electrolytes can lead to seizures which happens during dehydration.
The dehydration can also reduce the amount of blood in your body which can put a strain on the heart and cause shock as well.
Drinking water can help to prevent seizures as mild dehydration can trigger seizures and reduce attention span, impair motor skills and affect your short term memory.
However drinking too much water could trigger seizures.
Drinking too much water can trigger a seizure when you drink enough water to cause water intoxication which can also cause brain damage, coma and even death.
Drinking too much water can lead to buildup of fluid in your brain called cerebral edema which can affect your brain stem and cause central nervous system dysfunction.
The best way to stop a seizure when you feel it coming on is to take a medication called benzodiazepines which is a rescue medication for seizures.
The medications for seizures include diazepam and lorazepam which are taken orally.
In the case of a Jacksonian seizure, firmly squeezing the muscles around those that are twitching can sometimes halt the attack.
In most cases you can tell a seizure is coming by the symptoms of a seizure which can include racing thoughts, blurred vision, changes in tastes, smells and sounds.
Right before the first symptoms of a seizure begin, you may notice vision changes, a headache, dizziness, nausea, anxiety or fear, and changes to your senses (like taste, sound, smell and feeling).
The symptoms of a seizure are.
Staring.
Jerking movements of the arms and legs.
Stiffening of the body.
Loss of consciousness.
Breathing problems or stopping breathing.
Loss of bowel or bladder control.
Falling suddenly for no apparent reason, especially when associated with loss of consciousness.
The deficiency that causes seizures is vitamin B6 or (pyridoxine).
The Vitamin B6 deficiency most often mainly occurs in newborns and infants and causes seizures that are hard to control.