France, teenager walking while using his smartphone

Boy using a laptop

Teenage boy with his brother using a cellphone

Boy using a laptop with his parents at home

Boy using a laptop with his parents at home

Boy using a laptop with his parents at home

Boy using phone with his sister and mother at home

Boy using a digital tablet with his grandparents on a couch

Boy using a cellphone with his brother and sister at home

Boy using a digital tablet with his family looking at a laptop

Family using electronics gadget

Family using electronics gadget

Family using electronics gadget

One boy looking at his friend who is using an asthma inhaler

little boy using a pda

Illustration of girl using Heimlich maneuver on boy.

boy using a computer at the library

Elderly female nurse auscultates a male toddler using a stethoscope.

a pediatrician using a stethoscope to listen to a boy's heart

Students reading book and using computer in a library

Boy and a girl in school uniform studying

Illustration of boy using upper extremity muscles to stand up. Upper left: child on knees and elbows. Upper right: child supports himself on extended arms. Lower left: child straightens legs, hands still on floor. Lower right: hands "climb" up to

Childhood Obesity 2004 Linda Braucht (20th C. American) Computer graphics

Sick child sits on edge of hospital bed. Nurse stands nearby demonstrating how to use call button.

Illustration of boy demonstrating proper use of metered dose inhaler with open-mouth technique; inhaler is held 1 to 2 inches from mouth.

Boy using saltshaker