Many people wish not only to live as long as possible, but above all to do so without any health restrictions. However, with increasing age, the risk of age-related diseases such as Alzheimer’s or sarcopenia (loss of muscle mass and muscle strength with age) also increases. Research into ageing is therefore increasingly focussing on the time during a person’s lifetime when they are healthy. Under the leadership of the Leibniz-Institut für Analytische Wissenschaften (ISAS), a team of researchers from the University of Belgrade (Serbia), the University of Cambridge (UK) and Heidelberg University has now shown that the natural substance ergothioneine improves the health span of ageing animals.