A British Association of Dermatologists’ study showed that the levels of nickel found in mobile phones can cause dermatological problems for many mobile phone users. As many as 33% of people are at least slightly allergic to nickel, and nearly half of the 22 phones tested had levels that could affect those poor souls. Luckily, the allergy causes friendly, non-fatal dermatitis: itchy skin and a mild rash, easily healed with a topical steroid cream. I feel like mobile phones get a bad rap, since even jewellery can cause the same reaction, so here’s an encouraging list of diseases you definitely won’t get from your phone.