What exactly is the behind the physiology of feeling tired?

1. 92

   Billie Kelpinposted 11 years ago

   What exactly is the behind the physiology of feeling tired?
   
   We all know what it's like to feel tired.  Even my little dog Scooter knows. But HOW do we feel tired?  WHAT HAPPENS IN THE BODY TO CREATE THAT SENSATION? I don't mean how do we get to the state of being tired, but what is happening in the body to cause that sensation.  I, myself, always "feel most tired in my eyes".  I husband says he feels tired all over.  Is it lack of oxygen to the cells or ????
   
   

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2. 74

   CraftytotheCoreposted 11 years ago

   If you find out, please write a Hub on it!  I'm always tired, but I only have 1/2 thyroid left. Supposedly the other side works ok, but I have about 1/3 of the energy I had before I got thyroid disease. 
   
   I take about 10 vitamins a day.  I take magnesium supplements, Vitamin B, and D3 which are all supposed to boost me.  I've even tried Korean ginseng.  I walk every day at least 1 mile, sometimes up to 5 on weekends.  I can't figure it out.
   
   Today I went grocery shopping and was so tired after coming home, I just sat down and haven't used my brain for a thing since!  LOL

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   1. 92

      Billie Kelpinposted 11 years agoin reply to this

      Crafy, that seems rought!  But wow, I wish I could make myself walk a mile. Ur way ahead of  me! I'm really interested in what exactly it IS that causes the sensation. C says melatonin shuts things down.  I wonder what happens when that happens.

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   2. 74

      CraftytotheCoreposted 11 years agoin reply to this

      We have a wonderful park here with a marked mile track.  It makes it so easy to walk.  It was created by the town from an empty field.  It has a handicap children' playground as well.

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   ChristinSposted 11 years ago

   The release of the hormone melatonin in the brain starts to shut everything down gradually following the natural circadian rhythm. For me, my brain gets tired first. I start to slow down, my thinking gets foggy, very shortly after I start to yawn and my eyes get heavy.

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   1. 92

      Billie Kelpinposted 11 years agoin reply to this

      so....everything kind of shuts down - so the cells must create that sensation when the hormone effect is gone.  Uh, huh, it's the eyes - it's there in the eyes the most for me - like one of those bean bag weights are pressing down a bit.

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      ChristinSposted 11 years agoin reply to this

      with normal end of day tired yes, melatonin. Tired when you shouldn't be can be a variety of things from nutrient deficiencies/lack of exercise, thyroid disorder, food intolerance, sleep disorders etc. no one answer

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   edhanposted 11 years ago

   I need to drink lots of water to keep myself from feeling tired. I do exercise as well. It works for me this way.

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   1. 92

      Billie Kelpinposted 11 years agoin reply to this

      I'll try that.  I still am interested in exactly WHAT tired is in our bodies.  Maybe someone has the answer.

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5. 100

   L.M. Hoslerposted 11 years ago

   I find that if I am sitting for awhile, I start to feel tired and sleepy. If it is late in the evening I figure I will just go to bed. But then, I get up moving around, getting ready for bed and I find myself awake and not tired or sleepy at all. Most be something about moving around, changing what you are doing or something like that. On the other hand, in the mornings, I am tired and feel like I need to go back to bed and have no energy. It takes me a while to get moving in the morning and that is when I have that really tired feeling. Maybe it is that I don't sleep well at night.
   Also after I eat, it seems to make me tired and sleepy. I thought food was to give you energy but seems to work the opposite for me. Maybe eating less and better would help.

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      ChristinSposted 11 years agoin reply to this

      If you feel heavy or tired after eating a meal it is a sign of a food intolerance. Keep a food journal for a while and see if you can narrow down potential culprits. Look up how to do an elimination diet to test for them. dairy, gluten

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      jonnycomelatelyposted 11 years agoin reply to this

      Are you sure about that, Christin?  After eating, the body needs to concentrate resources in the digestive area of the body.... so shutting down the peripheral functions is more efficient and conserving of energy.

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   3. 37

      ChristinSposted 11 years agoin reply to this

      Yes one of the hidden Celiac disease symptoms is the tendency to feel lethargic 20-30 minutes after eating. It took years for me to find out it wasn't all in my head not just "a little sleepy" that happens, heavy fatigue though is not normal.

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