Old age was considered an important factor in the development of arteriosclerosis (Berrios, 1994) and a risk factor in diseases such as melancholia (Berrios, 1991). By 1910, there was a trend to include all dementias under ‘mental disorders of cerebral arteriosclerosis’ (Barrett, 1913). Arteriosclerosis, might be generalized or cerebral, inherited or acquired, and caused…