Over a lifetime, the longest relationship typically is not with parents, partners or children, but with siblings. Research focused on these family ties identifies five types of sibling relationships: the intimate, the congenial, the loyal, the apathetic and the hostile.” But when a sibling suffers from a mental illness, the relationship can fall outside those norms. Indeed, the Alliance on Mental Illness noted:
A new study looking at the link between genetic mutations and parental age has turned a long-standing assumption on its head: It's the father's age, not the mother's, that raises the risk for new genetic mutations in their children, including autism and schizophrenia.
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