UTMB Health’s Kyriakos Markides has found in repeated studies that Hispanics have lower rates of disease, including cancer, stroke and heart disease, the three leading causes of death in the United States. His research has found that Latin American immigrants are significantly healthier than U.S.-born Latinos. “There is no doubt immigrants are driving this,” Markides said. He believes a key factor may be that people who emigrate from their home country are typically healthier than those who do not emigrate. Legal immigrants must pass U.S. medical exams and illegal immigrants usually must take physically arduous journeys to cross the U.S. border. “They arrive healthier,” he said. “They’re the cream of the crop.”