A new study shows dogs can be trained to smell early signs of lung cancer on a patient’s breath.
German researchers found dogs correctly pinpointed people with lung cancer more than 70 percent of the time and correctly picked out people who did not have the disease more than 90 percent of the time.
The dogs were also able to tell the difference between another lung illness called chronic obstructive pulmonary disease and patients with cancer.
Researchers say people with lung cancer likely have different chemicals in their breaths that dogs can smell.
New research says many women may be getting screened for cervical cancer more often than necessary.
The Centers for Disease Control and Prevention found most doctors in the U.S. tell women they need a pap smear every year, but the American Cancer Society’s guidelines say women can wait three years after pap test results come back normal.
Researchers say testing too often increases the risk of a false positive, which they say can lead to potentially harmful treatments.
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