The Number of Violent Crimes Committed by Teenagers and Young

question 4

True/False

The number of violent crimes committed by teenagers and young adults plummeted about 15 years after the sharp decline in blood lead levels in preschool children.

---

Definitions:

Diagnosis

The process of identifying a disease or condition by examining the symptoms, medical history, and often through diagnostic tests.

Six Months

A developmental milestone where notable physical and cognitive changes occur in infants, such as beginning to sit up unassisted or recognizing familiar faces.

Two to Three Months

A period generally indicating a specific range of time often used in the context of developmental milestones in infants and babies.

Stimulants

Stimulants are substances that increase levels of neural activity in the brain, boosting alertness, attention, and energy, commonly used in both medical and recreational contexts.