London: iPhones have an edge over Blackberries, when it comes to your health, according to a study.The study being presented at the Annual Scientific Meeting of the American College of Allergy, Asthma and Immunology (ACAAI), tested several popular smartphones for two of the most common allergens – cobalt and nickel – and found neither metal was present in iPhones. But one-third of all Blackberries tested contained nickel.“Both metals can cause an allergic reaction including dry, itchy patches along the cheekbones, jawline and ears,” said allergist Tania Mucci, M.D., lead study author and ACAAI member.The less popular flip phone models also revealed levels of cobalt and nickel. Roughly 91 percent contained nickel and 52 percent tested positive for cobalt.These metals are commonly used in items such as jewelry, coins and even makeup. Nickel is one of the most common contact allergens, affecting 17 percent of women and 3 percent of men.
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