1. Longitudinal Self‑Tracking of Masturbation Frequency, 1957–2025

This dataset documents the annual masturbation frequency of a single adult individual over a period of 69 years (1957–2025). The data were collected manually and continuously and include, for each year, the individual’s age, the number of masturbation events, and the cumulative total since the beginning of the record. The dataset is fully anonymized and contains no personal information other than age, which is necessary for scientific analysis.The dataset provides a rare long‑term perspective on individual sexual behavior across the adult lifespan. Its continuous and consistent structure makes it suitable for analyzing long‑term trends, age‑related patterns, and intra‑individual developmental trajectories. The data are relevant for research in sexual science, gerontology, psychology, behavioral science, and health sciences.The dataset is organized in a clear tabular format and can be directly processed in statistical software such as R, Python, SPSS, or Stata. A detailed README file is included, describing variable definitions, methodology, data cleaning procedures, strengths, limitations, and potential use cases. The dataset represents a unique single‑case longitudinal record and offers valuable insights that are often not visible in population‑based studies.