The goal of this clinical trial is to learn if cold water drinking could promote body composition and further extend healthy lifespan in Chinese older adults. The main questions it aims to answer are: 1. Does cold water drinking lower the body fat percentage? 2. Will cold water drinking positively extend lifespan in a long-term Researchers will compare cold water intervention group to a control group (drinking 37℃ water instead) to see if cold water drinking works to promote health and slow down ageing process. Participants will: 1. Drink 4℃ or 37℃ water 4 times (9a.m., 12p.m., 15p.m., 18p.m.) every day for 6 months. 2. Visit the institute and health checkup department for tests and checkup at baseline, the end of the 3rd month, and the end of 6th month.
Age range
50 Years – 65 Years
Sex
ALL
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The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Value of core body temperature in centigrade assessed by e-Celsius
Timeframe: Twenty-four hours every three months for the 6 months of the experiments. The data will be collected at baseline, the end of the 3rd month, and the end of the 6th month.
Value of weight in kilogram assessed by Seca body weight scale
Timeframe: Five minutes every three months for the 6 months of the experiments. The data will be collected at baseline, the end of the 3rd month, and the end of the 6th month.
Value of height in meters assessed by Seca 217 stadiometer
Timeframe: Five minutes every three months for the 6 months of the experiments. The data will be collected at baseline, the end of the 3rd month, and the end of the 6th month.
Value of body mass index (BMI) calculated by weight and height
Timeframe: The calculation will cost two minutes every three months for the 6 months of the experiments.The calculation will be collected at baseline, the end of the 3rd month, and the end of the 6th month.
Body composition- volume of fat mass in cm^3 assessed by uMR 790
Timeframe: Fifteen minutes every three months for the 6 months of the experiments.The data will be collected at baseline, the end of the 3rd month, and the end of the 6th month.
Body composition-weight of fat free mass in gram assessed by Tanita MC-980
Timeframe: Fifteen minutes every three months for the 6 months of the experiments. The data will be collected at baseline, the end of the 3rd month, and the end of the 6th month.
Body composition-wegiht of fat mass in gram assessed by Horizon Wi
Timeframe: Fifteen minutes every three months for the 6 months of the experiments. The data will be collected at baseline, the end of the 3rd month, and the end of the 6th month.
Waist circumferences in centimeter assessed by TG2000-F
Timeframe: Fifteen minutes every three months for the 6 months of the experiments. The data will be collected at baseline, the end of the 3rd month, and the end of the 6th month.
Hip circumferences in centimeter assessed by by TG2000-F
Timeframe: Fifteen minutes every three months for the 6 months of the experiments. The data will be collected at baseline, the end of the 3rd month, and the end of the 6th month.
Brown adipose tissue-areas of temperature increase in cm^2 assessed by Fluke RSE600
Timeframe: Fifteen minutes every three months for the 6 months of the experiments. The data will be collected at baseline, the end of the 3rd month, and the end of the 6th month.