With age comes an accumulation of neurodegenerative diseases such as Alzheimer’s / dementia, Parkinson’s disease, stroke or Amyotrophic Lateral Sclerosis (ALS). To understand how and why these diseases manifest themselves in old age, the cellular aging process per se and the associated changes in the fundamental cellular processes must first be analyzed according to Univ. Prof. Dr. Christian Behl. He has been able to conclusively show in his research that the biochemistry of young and old cells differs. This is especially true when dealing with proteins that have a causal relationship with neurodegenerative diseases. The molecular and cellular aspects of the aging process are being studied by Behl’s workgroup at the Institute for Pathobiochemistry at the University Medical Center Mainz.