Today, let's analyze how long Sleeping Beauty can sleep. In the story, Sleeping Beauty did not eat at all during her sleep, and everyone in the castle slept with the princess, which can rule out the possibility of someone helping Sleeping Beauty with drips to phone database supplement her nutrition. Furthermore, assuming that the construction of the castle is complete and the main structure of the building is complete, Sleeping Beauty will not be hit by falling stones during her deep sleep, and there is no possibility of accidental death. In this case, the only thing Sleeping Beauty consumes is the energy to maintain the normal function of the body.
The lowest calorie consumption in a resting state is called the basal metabolic rate (BMR), and the formula is as follows: BMR (male) = 13.7 × weight (kg) + 5.0 × height (cm) - 6.8 × age (years) + 66 BMR (female) = 9.6 × weight (kg) + 1.8 × height (cm) - 4.7 × age (years) + 655 According to the reference of German women from Grimm's fairy tales, it is assumed that the princess is 169.5 cm and 68.1 kg (Note 1). There are 15 and 16-year-old versions for the fulfillment of the princess' curse. For the sake of unity,
it is assumed that the age of the incident is 16 years old. After putting the above data into the BMR formula, the basal metabolic rate of Sleeping Beauty can be found to be 1538.66 calories. When the cumulative value of calories consumed by the body minus calories absorbed reaches 7700 calories, it will lose 1 kilogram (Note 2). According to the above assumptions: On the first day, Sleeping Beauty lost 1538.66/7700 kilograms, which is about 199.8 grams. On the second day, because of the loss of 0.2 kg, Sleeping Beauty's basal metabolism decreased by 9.6 × 0.2 = 1.92 calories,