Medicine New sensor to determine biological age with sweat
Sweat should reveal how old we really are. In a new research project, scientists from Switzerland and the USA are developing sensors that can measure biological age based on certain molecules in sweat.
21.08.2025, 10:22
SDA
The aim is to develop a kind of "age clock" that continuously provides data on the physiological state of the body, the Swiss Federal Laboratories for Materials Science and Technology (Empa) announced on Thursday. In addition to Empa, ETH Zurich, the University Hospital Basel and the California Institute of Technology (Caltech) are also involved in the research project called "Age Resist".
According to Empa, ageing is still a poorly understood biological phenomenon. However, it is known that fitness and susceptibility to certain diseases change over the course of a lifetime - and that medical treatments need to be better tailored to the individual condition of the body. The chronological age, measured in years of life, says only a limited amount about the actual physical condition.
Fewer risks and side effects
Until now, biological age has mostly been determined by laboratory analysis of blood samples, which is time-consuming and not suitable for long-term use. According to the researchers, however, the approach using so-called biomarkers, which are measured in sweat, and wearable sensors promises a simple and continuous procedure that could also be used in everyday life.
According to the researchers, such an age watch could not only measure individual resilience and stress resistance, but also help to ensure that medical treatments are adapted to the patient's respective condition. Side effects and risks could thus be reduced.
Study participants are currently still being sought for the clinical testing of the technology. The research project is funded by the Swiss National Science Foundation (SNSF).
