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Exercises burned calories are calculated according to the linear relationship between speed
and calories. The speed is obtained via the calculated steps and mileage.
Calories burned are calculated from 24:00 to 24:00 the next day.
The more exercise one does, the more calories one burns. It's a sign of good health.
4.Sleep time
Sleep time, means sleep hours. Sleep contains deep sleep, light sleep and awake moments.
Hesvit S3 analyses the body activity intensity according to the data from 3-axis acceleration
sensor per minute. Based on the activity intensity, it determines the sleep state in current minute:
deep, light or awake. It further calculates the sleep start time, sleep time and awake moments
according to the sleep state per minute. When Hesvit S3 is put aside, it does not calculate the
sleep. Errors may occur in determining the sleep state, such as band sitting still, if it’s held in
one position for a long time, etc.
Sleep time is calculated from 18:00 to 18:00 the next day.
Calculated sleep time means the displayed sleep hours. It may delay 20-30 minutes, which is
normal.
Usually, the sleep time varies by age: 5-7 years: 15 hours; 8-12 years: 10 hours; 13-18 years:
9 hours; 19-59 years: 7-8 hours; above 60 years: 5.5-7 hours. Besides, the best time to sleep is
suggested from 22:00-6:00. For seniors, it's 21:00-5:00 and for children, 20:00-6:00. In addition,
people feel refreshed when their deep sleep reaches 4 hours. Otherwise, they get exhausted
easily.
IV. Physical Signs
1.Heart rate
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