Dieter Hallervorden maintains fitness through daily exercise at age 91

German cabaret artist Dieter Hallervorden, aged 91, attributes his fitness to a rigorous daily routine. He engages in one hour of exercise every morning before breakfast, including swimming, using an ergometer, light stretching, and daily walks.

Hallervorden utilizes a wearable device to monitor metrics such as heart rate variability, sleep quality, and stress levels. He notes that the device provides guidance on lifestyle habits, such as avoiding eating or smoking after 10 PM.

Regarding mental activity, Hallervorden emphasizes the importance of staying active, stating that he prefers an ‘unrestful retirement’ over inactivity. He remains professionally engaged, managing several stages including the Schlosspark Theater.