New Delhi, Oct 28 (ANI): A new research has come up with a method that could help in determining the fitness age i.e. it can help us inform till what age one will remain fit and healthy. The research conducted at Norwegian University of Science and Technology showed that fitness age takes one's respiratory health into account and is made up of different components including your heart rate, waist circumference, exercise routine, and more. According to the study, the lower one's fitness age s from their actual age, the higher one's chances of living a long life plus, if one does not get the number one then by regular exercise the fitness age could decrease over time.