People around the world have been using spice cures for centuries, but now scientists are proving that spices can ease inflammation, activate the immune system, kill bacteria and viruses and even kill cancer cells. Turmeric has been used in Ayurvedic medicine to heal wounds and treat inflammatory illnesses. Saffron has been used as everything from an aphrodisiac to a remedy for colds and stomach problems. Chinese and traditional Islamic medicine use ginger to treat health problems including digestive ailments, morning sickness, arthritis, and infectious diseases.