Because of the malleability of lead, these sheets can be shaped closely to awkward shapes, such as the junction of a sloping roof and a chimney, without the need for the sheet to be cut. Cuts in the sheet would create a potential leak site. Copper is also used for this purpose as it is also durable and malleable.
A number of factors increase the risk of developing grand mal seizures. Not all people with risk factors will get grand mal seizures. Risk factors for grand mal seizures include: 1  Family history of certain genetic conditions. 2  Family history of epilepsy. 3  Recent brain surgery. 4  Recent head injury. 5  Recent infection of the brain.
Primary Generalized Seizures The different types of primary generalized seizures cause different symptoms: Generalized tonic-clonic seizure (also called grand mal seizure) â In this type of seizure, the person usually loses consciousness and falls to the ground. All body muscles can contract at once in a sustained contraction, or they can contract in a series of shorter rhythmic contractions, or both.