High-altitude physiology research on Mount Everest

Bruce D. Johnson, Ph.D., an exercise physiologist with an independent research program in the Division of Cardiovascular Diseases at Mayo Clinic, discusses altitude physiology.

Mayo Clinic study finds that cardiac rehab reduces mortality by 45 percent

Randal J. Thomas, M.D., director of Mayo Clinic's Cardiovascular Health Clinic, and colleagues found that patients who participate in cardiac rehabilitation after having heart interventions have a 45 percent lower mortality rate.

Mayo Clinic Study Confirms Stents are Safe for Patients Allergic to Metal

Mayo Clinic researchers have found that cardiac patients who have skin allergies to metals commonly found in jewelry, such as nickel, are at no higher risk for complications if they receive a stent containing these metal components.

Stomach function focus of obesity research

Pharmacological and medical management of obesity have met with little success. Michael Camilleri, M.D., Division of Gastroenterology and Hepatology, discusses the reasons for these failures.

Study suggests 140 colonoscopies don't equal competency

Professional organizations have traditionally recommended that gastroenterology fellows perform 140 colonoscopies before assessing competency.

Study finds novel drug effective for functional constipation

Affecting nearly 30 million Americans, constipation increases health care costs and diminishes quality of life. Banny S. Wong, M.D., of the Department of Gastroenterology and Hepatology, discusses a phase II study of A3309.