A member of the Indian Battalion checks a patient's blood pressure in the UNMISS hospital in Malakal, Upper Nile State. This year,the World Health Organization and partners are focusing on the global problem of high blood pressure and have adopted the theme "Control your Blood Pressure" for World Health Day. Though it affects more than one in three adults worldwide, the symptoms of hypertension often go undetected and is responsible for half of all deaths attributed to heart disease and stroke. Photo UNMISS. Click for larger image