5 preventive screening tests that catch disease early, per a heart surgeon

Heart surgeon Dr Jeremy London recommends five preventive screening tests to detect disease early, including colonoscopy, mammography, Pap smears, chest CT scans, and abdominal ultrasounds, citing significant reductions in cancer and aneurysm deaths. London, with 25 years of experience, shared the list on Instagram on September 2, emphasizing that screenings identify problems before symptoms arise. Colonoscopy cuts colon cancer deaths by 25 percent, mammography reduces breast cancer deaths by 22 percent, and Pap smears have lowered cervical cancer deaths by over 70 percent. For smokers, low-dose chest CT scans reduce lung cancer deaths by 20 percent, while abdominal ultrasounds in men cut rupture deaths from aortic aneurysms by nearly 33 percent. London advises proactive testing, though results may require further evaluation.