In 2010, there were approximately 17.5 million workers less than 24 years of age, and these workers represented 13% of the workforce. Young workers have high occupational injury rates which are in part explained by a high frequency of injury hazards in workplaces where they typically work (e.g. hazards in restaurant settings associated with slippery floors and use of knives and cooking equipment). Inexperience and lack of safety training may also increase injury risks for young workers. And, for the youngest workers, those in middle and high schools, there may be biologic and psychosocial contributors to increased injury rates, such as inadequate fit, strength, and cognitive abilities to operate farm equipment such as tractors.