There is a general understanding that many medical conditions are caused by factors present in the natural or artificial environment. Environmental health programs intend to prepare students to investigate these correlations and provide insights based on these systematic investigations.

The USA remains the world’s most popular destination for international students. Universities in the US dominate the world rankings and the country also offers a wide variety of exciting study locations. State university systems are partially subsidized by state governments, and may have many campuses spread around the state, with hundreds of thousands of students.

A bachelor's degree is given to students who fulfill the necessary requirements given by the college or university they are attending. The requirements include three to seven years of focus on a subject, typically referred to as a major or concentration.