High anxiety makes it hard to sustain attention during difficult tasks because it requires increased cognitive efforts.
IS ANXIETY PASSED ON FROM PARENT TO CHILD?
Anxious parents transmit anxiety to their child through various pathways including learning and heritability.
ACTIVITY OF THE LOCUS COERULEUS CONTRIBUTES TO PATHOLOGICAL ANXIETY
This article discusses the role of the Locus coeruleus in the generation of pathological anxiety