This study investigates the anti-tumor capabilities of urine both with and without physical exercise. The study aims to understand how these capabilities might be linked to the concentrations of cholesterol and dopamine in the urine. Cholesterol is a type of fat found in your blood, and dopamine is a chemical in the brain that affects mood and movement.

Participants will be asked to engage in a 30-minute physical exercise session. Urine samples will be collected to analyze the levels of cholesterol and dopamine. The study will compare results from before and after exercise to assess changes in anti-tumor capabilities.

• Who can participate: Participants must be healthy individuals aged 18 or older who can perform a 30-minute physical exercise and provide appropriate exercise gear. Those answering "yes" to any question on a modified physical activity readiness questionnaire will be excluded.
• Study details: Participants will need to perform a 30-minute physical exercise and provide urine samples. The samples will be analyzed for cholesterol and dopamine levels to study their anti-tumor capabilities.