Sleep disorders affect circadian rhythm and physical health. Short sleep (<7h) increases risk of diabetes, obesity, and cardiovascular disease. Longer sleep (>9h) linked to diabetes, obesity, and depression. Sleep disturbances cause hormonal imbalances and increased food cravings
Walking improves cardiovascular fitness and prevents chronic diseases. It strengthens bones, improves balance and reduces body fat. Walking enhances muscle power and endurance while improving mood
Stride length is the distance traveled in two steps with both feet. Average adult stride length is 2.5 feet. Stride length can be measured by walking 10 steps and dividing by 10
People burn 3-4 calories per minute during moderate-intensity sex. Men burn 4.2 calories per minute, women 3.1 calories per minute. Average sexual encounter lasts 6 minutes, burning 25-19 calories
Average adult walking speed is about 3 mph. Walking speed varies by age, sex, height, weight, fitness level. Brisk walking pace is 3.5-4 mph according to CDC guidelines
Calorie burn per step depends on weight and height. Typical 160-pound person burns about 40 calories per 1,000 steps. Average steps per mile is 2,000-2,400 steps