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This is an older article that may not reflect Dr. Mercola’s current view on this topic. Use our search engine to find Dr. Mercola’s latest position on any health topic.
1. Rinsing your nose with salt water can help keep you healthy and ward off allergy symptoms.
2. Dogs can smell cancer and low blood sugar. A study showed that it is possible to train dogs to identify, based on breath samples, which patients had lung and breast cancer. For diabetics, the dogs can smell ketones in urine and on the breath when blood sugars are high. Dogs can pick up on other smells that humans can’t when glucose levels drop.