Mr Christopher Collins is a researcher and data analyst at Muhdo Health Ltd, UK, with a research focus on human epigenetics, DNA methylation, biological ageing, exercise physiology, and personalised health. His work has included the development and evaluation of saliva-based epigenetic clocks, including a cost-effective 10-CpG biological age model, and investigations into how exercise, nutrition, injury, and lifestyle factors are associated with DNA methylation patterns. He has contributed to research spanning genetics, sports performance, healthy ageing, and biomarker development, with work published across peer-reviewed journals, zenodo open-source software and scientific preprint platforms. His current research interests centre on translating epigenetic and genomic data into practical, scalable biomarkers for understanding health, ageing, and human performance.