I think this is a reason the name. Although cast steel is also produced by pig iron, but cast steel has lower content of carbon element. So, scientifically speaking, if the carbon content is upper 2%, then it should be called as cast iron, but if lower than 2%, then it should be called as cast steel.
Depending on the type of dementia, the person's behavior may eventually become out of control. The person may become angry, agitated, and combative or clingy and childlike. He or she may wander and become lost. These problems can make it difficult for family members or others to continue providing care at home.
Understanding Dementia: What to Expect With Sundowning. When a loved one is diagnosed with Alzheimer's disease or dementia, there are a number of side effects that can accompany this devastating disease. One of the most important side effects to understand is something known as sundowning. This is something that impacts many but not all individuals with Alzheimer's disease, and the best way to deal with sundowning as a friend or family member of someone with dementia is to be prepared and to have a full understanding of what this condition entails.