Students interested in formal training to become a general contractor can choose between a bachelor's degree or master's degree program. Through coursework, students not only learn about building materials, codes, and blueprints, but also gain business and leadership skills. Show me 10 popular schools.
Age. Increasing age is a risk factor for many cancers, including lung cancer. The average age in the United States for a lung cancer diagnosis is around 70 years of age. About 10% of lung cancer cases occur in people younger than 50 years old.
Smokers who start when they are young are at an increased risk of developing lung cancer. Results of a study of ex-smokers with lung cancer found that those who started smoking before age 15 had twice as many cell mutations as those who started after age 20.