Ginger root has long been used to treat inflammation, gastrointestinal distress, nausea and motion sickness. And recent studies show that it also kills cancer cells, particularly ovarian cancer and prostate cancer. You Might Also Like Apples help lower cholesterol and cleanse the intestines. January 7, 2015 Turmeric June 18, 2013 Rosemary essential oil is often used for alertness and stimulating memory July 16, 2014