Watch: Brazilian teen tops texting record by 1.19 seconds NEW YORK, Nov. 20 (UPI) -- The 17-year-old Guinness World Record holder for text messaging topped his own record in New York using an iPhone 6 Plus. Marcel Fernandes Filho of Brazil used Syntellia's Fleksy keyboard app Nov. 7 to type the Guinness-required phrase -- "The razor-toothed piranhas of the genera Serrasalmus and Pygocentrus are the most ferocious freshwater fish in the world. In reality they seldom attack a human" - in 17 seconds flat. Filho's text topped his own world record by 1.19 seconds. A Guinness adjudicator was on hand to verify the record. His previous record, set in May, involved the same third-party keyboard app installed on a Samsung Galaxy S4 phone. The power-texting teen might want keep his chin up while messaging off the clock -- a recent paper suggests "text neck" is reaching epidemic proportions among smartphone users, and could lead to serious spinal injury later in life.