One in five young people view period-tracking technology as an effective method of contraception, a survey has found, raising concerns among health officials about an increased risk of unplanned pregnancies. A HSE survey of 1,134 adults aged 18 to 30 found a significant minority believed the contraception methods such as the Pill could prevent sexually transmitted infections (STIs). In response to the findings, the HSE said there was a need to normalise having an STI test – just as people regularly got dental check-ups or eye tests. The report highlighted a number of what public health officials said were “concerning” trends relating to sexual health in younger people. The HSE published the survey on Wednesday about young people’s sexual health in Ireland.