Final answer:
Innocent murmurs are usually heard in young patients during states of increased heart rate such as exercise or crying, not commonly during sleep or while resting.
Step-by-step explanation:
Innocent murmurs in young patients are usually heard during states of increased blood flow through the heart, such as during exercise or when the child is anxious or excited. They are benign heart murmurs that are normal variants with no structural abnormality of the heart and are often heard in children and adolescents. Innocent murmurs can also sometimes be heard during situations that increase heart rate, like crying or fever. These murmurs can come and go, and they may change in intensity with different body positions. They are not generally heard during quiet states like sleep or when the child is at rest. Feeding in infants may sometimes also increase the chance of hearing an innocent murmur because it can increase the workload on the baby's heart.