Studies have shown that it can actually help fight tumors as well as different types of cancer, including lung, breast, and colon tumors. It has also been shown to avert asthma. These apples contain powerful antioxidants and phytochemicals, which help relieve inflamed airways, thereby guarding against asthma, related breathing problems, and general lung function. Known as Brain food, red apples improve the electrical activity of the brain. They also improve the transmission of signals between neurons in the brain and stimulate brain cells, which is essential in maintaining a healthy and active nervous system.