Caffeine: What Does It REALLY Do to Your Body?

Simply put, caffeine is not good for you.  Caffeine effects every part of your body, most of which can be quite negative. So why do we crave it and pour ourselves another cup to help us through the day? It is an addictive drug and the only way to rid ourselves of this cure is to really understand just what it does to your body.

Mind you I’m writing this as I’m drinking a cup of Starbucks Coffee.

Haha.

What does caffeine do to your body?

Having too much caffeine can do wonders to your body. Some effects of a high caffeine intake include:

  • Muscle Tremors
  • Insomnia
  • Anxiety
  • Irritability
  • Nausea/gastrointestinal problems
  • Restlessness
  • Nervousness
  • Fast or irregular heartbeat
  • Headaches

Why is this happening?

Caffeine affects your hormones. It affects how your hormones function.

  • Adenosine: A hormone to calm your body, however caffeine inhibits the absorption of adneosine. Therefore your body cannot calm itself.  If you have too much caffeine too late in the day, you’ll be awake and alert for a bit, but may have problems falling asleep.
  • Dopamine: Caffeine increases the dopamine levels in your body – giving you a ‘feel good’ feeling after taking it and then a ‘low’ feeling when it wears off. Sounds similar to many addicting drugs, which is actually what caffeine can become, as many people feel they ‘need’ caffeine in the morning in order to function.
  • Adrenanline: The boost caffeine gives us is the main reason WHY we drink it!  The increase in energy is a great feeling, however its only temporary. Once, the caffeine wears off you can find yourself even more tired than before, and sometimes even jumpy or easily irritated.
  • Cortisol: Caffeine can lead to the increase of the levels of coritsol in your body.  Cortisol is also known as the stress hormone – which has numerous negative effects on the body such as weight gain, diabetes, heart disease or even extreme mood changes.

Caffeine and Your Flat Stomach Diet

Recent studies have found that the increase of cortisol in your body, caused by caffeine can have some negative effects when trying to get a flat stomach (and negative effects on your body in general). Some of these effects include:

  • Increased cravings for foods high in fat and cholesterol. When this happens your body is more like to store the fat in the abdomen, making it harder to lose weight and get a flat stomach.
  • Increased cravings for foods high in caffeine, thus creating a negative cycle.
  • Decrease muscle tissue
  • Decreased bone density
  • Blood sugar imbalances
  • Headaches
  • Increase the risk of High Blood Pressure

Any of these situations, while directly or indirectly related to weight loss, can affect how quickly you reach your fitness goals.

To be fair, caffeine in small doses can have some benefits, like giving you energy and helping you focus. However, the long term effects of caffeine can cause more harm than good. So, next time you reach for your cup of coffee – think of your goals and exactly what the caffeine will do to your body – figuring out – is it really worth it?

For me – after all of this – my coffee has been finished – oops! However, I will be working towards eliminating caffeine from my diet, after all, I’ve got places to go where a flat stomach is required!

  • Adenosine- Can inhibit absorption of adenosine, which calms the body, which can make you feel alert in the short run, but can cause sleep problems later. (More on this below.)
  • Adrenaline- Caffeine injects adrenaline into your system, giving you a temporary boost, but possibly making you fatigued and depressed later. If you take more caffeine to counteract these effects, you end up spending the day in an agitated state, and might find yourself jumpy and edgy by night.
  • Cortisol- Can increase the body’s levels of cortisol, the “stress hormone”, which can lead to other health consequences ranging from weight gain and moodiness to heart disease and diabetes.
  • Dopamine- Caffeine increases dopamine levels in your system, acting in a way similar to amphetamines, which can make you feel good after taking it, but after it wears off you can feel ‘low’. It can also lead to a physical dependence because of dopamine manipulation.
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Leave A Reply (10 comments so far)


  1. Jimmy
    5 years ago

    Great article! Too many people depend on caffeine to get them through their days yet wonder why they gain weight or don’t feel good.


  2. Charlie
    5 years ago

    Love this article, especially as you are writing it drinking a Starbucks coffee!!! hehehe


  3. Stacy
    5 years ago

    My name is Stacy and I’m a caffeine addict.


  4. Debi
    5 years ago

    Great article! Love the humorous touches : ) I sometimes use coffee as a substitute when I’m feeling snacky in the afternoon or evening… after reading this I am not so sure this is the best way to maintain my weight, either. I also wanted to mention the “fillers” people are known to put in their coffee – they can add up significantly as well!


  5. Sara
    5 years ago

    Great article! Great information – I’ve been trying to drink less coffee, but haven’t been able to kick the habit – after reading this I’m going to try MUCH harder!


  6. Dee
    5 years ago

    Funny you were writing that and drinking coffee.. lol I know coffee isn’t good for you but why does it taste so good in the morning? My motto is all things in moderation.


  7. Burn Calories
    5 years ago

    This blog is excellent. Keep up the good work, inspires me to keep building mine on the positives of resveratrol.


  8. Lori
    5 years ago

    I love your blog. Such great information and insight.


  9. Haley
    4 years ago

    I am very thankful to this topic because it really gives great information

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