Stock Photo - 12 January 2023, Mecklenburg-Western Pomerania, Greifswald: Human biologist Karen Salewski (M) measures the joint on the thumb of 45-year-old test subject Fabian Feldt. Since 1997, adults from Western Pomerania have been regularly examined medically and dentally in the SHIP (Study of Health in Pomerania/Life and Health in Western Pomerania), which, according to the organizers, is the world's most comprehensive long-term study. Feldt, an administrative business administrator, is the 10,000th subject to be examined for risk factors and disease progression for studies. Photo: Jens Büttner/dpa. - Greifswald/Mecklenburg-Western Pomerania/Germany