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# Biological clock

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human biological clock

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### Biological clock

1. 1. THE BIOLOGICAL CLOCK BY: AHMAD ELSAEED
2. 2. THE BIOLOGICAL CLOCK  Why the probability of heart attack increasing in the morning at 8 o’clock ?  Or crash your car on a Moto way at 2 o’clock in the afternoon ?  Can tack a medication at right time in the day to save your life ?  When we eat or play or sleep or tested
3. 3. THE BIOLOGICAL CLOCK CONT'D The answer of these question lie in the secret world of the biological clock
4. 4. THE FIRST EVIDENCE  At a depth of 114km in a cave at 1962 the geologist Michael sfera make a experiment on himself  Live in this cave for many months until lost Sense of time  The result of this experiment shows that his body Walking on a regular routine
5. 5. THE BIOLOGICAL CLOCK  Finally, scientists began to discover the truth about the biological clock inside our bodies and found out that it is there in every cell of our body!  There are specific genes within the cell responsible for time keeping.
6. 6. BIOLOGICAL CLOCK
7. 7. BIOLOGICAL CLOCK RATE  All of us have biological clock but it’s differ form one person to another  The normal rate is 24 hours  The maximum rate is 25  The minimum rate is 22
8. 8. BIOLOGICAL CLOCK
9. 9. FROM 6 AM TO 8 AM
10. 10. FROM 6 AM TO 8 AM  Start of day and Getting out of bed  Not only the long of biological clock affect on wake up early but also age
11. 11. WAKE UP We start our life prefer wake up early  From 10 to 21 year sleep late and wake up late  From 21 to 55 years sleep late and wake up early  From 55 years we sleep early and wake up early
12. 12. FROM 8 AM TO 11 AM
13. 13. FROM 8 AM TO 11 AM  In this period you wake up an ready to launch  The most dangerous period in the day  Br carful to make this period Full of energy
14. 14. FROM 8 AM TO 11 AM CONT'D  The probability of heart attack increase by 3 time
15. 15. FROM 12 PM TO 2 PM
16. 16. FROM 12 PM TO 2 PM  The best period in a day for Best performance , thinking and do exams
17. 17. FROM 12 PM TO 2 PM CONT'D Best period to study
18. 18. FROM 2PM TO 4 PM
19. 19. FROM 2PM TO 4 PM Low performance
20. 20. FROM 2PM TO 4 PM CONT'D We sleep twice a day In the afternoon and In the evening  Sleeping In the afternoon is called a nap  Nap Ranging from 10 to 20 minutes
21. 21. IF WE DID NOT HAVE A NAP
22. 22. Different biological clock There is a special clock in the heart to set its beats, in the liver , in the kidney. So, in every part and every cell of our body, there is a clock for time keeping!
23. 23. DIFFERENT BIOLOGICAL CLOCK This different allow doctor to treat with each member of body according to schedule and this will be lead to find medicine for diseases
24. 24. KRISTEN TEEFONE'S EXPERIMENT
25. 25. FROM 4PM TO 6PM
26. 26. FROM 4PM TO 6PM  Performance increases again  Highest body temperature  Highest blood pressure
27. 27. CYCLING HOUR RECORD
28. 28. FROM 6PM TO 8PM
29. 29. FROM 6PM TO 8PM  Highest body temperature  Over the years Eating habits changed  “Eat breakfast like a king, lunch like a prince, and dinner like a pauper” Adelle Davis.  Body Getting ready for sleep not eat
30. 30. FROM 8PM TO 10PM
31. 31. FROM 8PM TO 10PM  The biological clock start to relax  Start thinking in sleep
32. 32. DECEIVE THE BIOLOGICAL CLOCK
33. 33. EXPOSURE TO LIGHT  At sunrise and at Sunset because biological clock is more sensitive to light  At sunrise make us wake up early (increase clock speed)  At sunset make us sleep late (decrease clock speed)
34. 34. NIGHT SHIFT  Found that Diseases of cancer increases for people that have work at evening to morning
35. 35. SLEEP
36. 36. FROM 2AM TO 4AM
37. 37. FROM 2AM TO 4AM  The activity of the body decreases to the lowest case  Death cases increases but also Natural birth increases form 3AM to 5AM
38. 38. WHAT IS SLEEP?  An altered state in which people become relatively unaware of external stimulation
39. 39. WHY DO WE SLEEP?  Evolutionary Theory: Protective function, keeps people tucking away at night, safe from predators.  Recuperative Theory: Conserves energy, restores body tissues depleted during daily activity
40. 40. HOW MUCH SLEEP DO I NEED?  Infants – 20 hours  50% REM  Children/Adolescents – 10 hours  25-30% REM – Bed Later, Up Later  Adults – 8 hours  20% or less REM  Elderly – 6 hours – Bed Earlier, Up Earlier
41. 41. WHAT IF I MISS SLEEP?  Effects On Body – Immune system weakens – Metabolic malfunction – Varied body temp  Effects On Brain – Moodiness – Decreased cognitive performance Learn slower, remember less, loss concentration & creativity – Blurred vision – Disorganized speech – Hallucinations
42. 42. AM I SLEEP DEPRIVED? YES/NO  I need an alarm clock to wake up early.  It’s a struggle to get out of bed in the morning.  I hit the snooze bar several times to get more sleep.  I feel tired, irritable and stressed out during the week.  I have trouble concentrating and remembering.  I feel slow with critical thinking, problem solving and being creative.
43. 43. AM I SLEEP DEPRIVED? YES/NO  I often fall asleep in boring classes or warm rooms.  I often fall asleep within 5 minutes of getting into bed.  I often feel drowsy while driving.  I often sleep extra hours on weekend mornings.  I often need a nap when I get home from work.
44. 44. AM I SLEEP DEPRIVED? YES/NO  An answer of “yes” to three or more of the previous questions indicates sleep deprivation.  You can easily improve your mood, performance and health by getting more sleep!
45. 45. STAGES OF SLEEP
46. 46. WHAT HAPPENS WHEN WE SLEEP?  Sleep occurs in a recurring cycle of 90 to 110 minutes and is divided into two categories: Non-REM (which is further split into four stages) and REM sleep.  There are four stages in the non-REM sleep.  REM stands for Rapid Eye Movement.
47. 47. Brain Waves  Beta  Alpha  Theta  Delta
48. 48. STAGES OF SLEEP: PRE-SLEEP STAGE Awake and Alert Beta waves Functions: calm, alert, active, ready to learn May take about 15 minutes to go thru this stage Adjust pillows, comforters, start to relax
49. 49. STAGES OF SLEEP: PRE-SLEEP STAGE Awake – but Drowsy Alpha waves Functions: relaxed, harder to concentrate, want to go to sleep Hypnogogic Hallucinations Vivid images, bizarre Jerky movements Sensation of “falling”  “Bed gravity,” floating,
50. 50. STAGE 1 SLEEP: ALPHA TO THETA WAVES Non-REM Breathing slows down Disengage from sensation Vivid mental imagery– Everyday activities, not “bizarre” dreams
51. 51. STAGE 2: THETA – K COMPLEXES - DELTA Non-REM Brief periods of brain activity Small muscle twitches Breathing rhythmical
52. 52. STAGE 3: THETA - DELTA - THETA Non-REM Slow wave sleep Probably a transition stage
53. 53. STAGE 4: DELTA WAVES – 100% Non-REM Oblivious to outside world Sleep-walking, sleep-talking occur here Very difficult to wake up- but can have activities Answer the phone, talk, etc… Then…you ascend back up through these stages and enter your 1st dream
54. 54. REM (RAPID EYE MOVEMENT)  Body functions during REM  Brain neurons fire more  Increased blood pressure  Increased respiration  Increased heart-rate  Body is paralyzed…  Nightmares occur now = frightening, unpleasant dreams  No sleep walking during REM
55. 55. DREAMS  An individual will have approximately 4- 5 dreams/night 1.5-3.0 hours of sleep time spent dreaming They increase in length as the night progresses
56. 56. ANY QUESTION
57. 57. THANK YOU