====== Visit 2 of General Assessment 4A ====== Lifelines participants participating in general assessment [[4A]] visit a [[location]] of their choice for a second time.\\ At the location, they undergo the following procedures: * Fasting venapuncture to collect [[blood samples]] for [[blood analyses]] and [[blood samples storage|storage]] (8+ years old). * Handing in of 24-h [[urine samples]] for [[urine analyses]] and [[urine samples storage]] (18+ years old) * Handing in of timed overnight [[ urine samples]] for [[urine analyses]] and [[urine samples storage]] (8-17 years old). * Handing in [[ActiveLIFE | activity tracker]]. 4A Visit 2 is preceded by [[4A Visit 1]] (according to protocol).\\ 4A Visit 2 is procedurally equivalent to [[1A Visit 2]], [[2A Visit 2]] and [[3A Visit 2]].