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How does sleep affect your body's functioning?Science project video


How important is sleep? Sleep is proven to benefit both physical and mental functions. Our bodies are influenced by an internal clock, or circadian rhythm, that regulates both activity and sleep. Does sleep therefore affect our vital signs? This is the purpose of this science fair project - in which you will have your temperature, respiration rate, heart rate, and blood pressure monitored while you sleep.


Evaluate changes to vital signs during sleep.

Scientific Terms

Vital signs, sleep, respiration, temperature, heart rate, blood pressure


Vital signs include your heart beat, breathing rate, temperature, and blood pressure. Your health care provider may watch, measure, or monitor your vital signs to check your physical well-being.

Normal vital signs vary with age, sex, weight, exercise tolerance, and overall health; however, the range for normal vital for the average healthy adult, resting is:

  • Blood pressure: 90/60 mm/Hg to 120/80 mm/Hg
  • Breathing: 12 - 18 breaths per minute
  • Pulse: 60 - 100 beats per minute
  • Temperature: 97.8 - 99.1 degrees Fahrenheit / average 98.6 degrees Fahrenheit.
  • Respiration rate: 14-18 breaths per minute.
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