Excessive caffeine consumption effect on heart/body
Each day I drink lots of coffee and energy drinks (redbull 355ml cans). I go to gym 3 times a week (on evenings). Are there any effects on my workouts? I stopped drinking any caffeine (at least from coffee and energy drinks) for 3 weeks and didn't feel any changes. Not during daytime nor before, during or after my workouts. My friends often tell me that my heart will explode from such huge amounts of caffeine (I read about caffeine OD and felt "caffeine induced disorders" symptoms).
My question is what's the effect of caffeine on heart/body when person is working out?
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To get into the details of this, there are two things I suggest you read/watch:
Check out this article: Caffeine, Stress and Your Health: Is Caffeine Your Friend or Your Foe?
A snippet from it points to one specific hormone:
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.
Of course this is not the only stress hormone, but caffeine increases stress hormones in the body. To understand some studies on the effects stress can have on your body, watch this National Geographic documentary if you have Netflix (or haven't used your 1 month free trial):
It is quite informative and interesting, and has lead me to re-evaluate my own caffeine consumption as well as the general 'stresses' of my life. Take care and good luck!
I suggest you read the wiki article:
In large amounts, and especially over
extended periods of time, caffeine can
lead to a condition known as
caffeinism. Caffeinism
usually combines caffeine dependency
with a wide range of unpleasant
physical and mental conditions
including nervousness, irritability,
anxiety, tremulousness, muscle
twitching (hyperreflexia), insomnia,
headaches, respiratory alkalosis, and
heart palpitations.
Furthermore, because caffeine
increases the production of stomach
acid, high usage over time can lead to
peptic ulcers, erosive esophagitis,
and gastroesophageal reflux
disease. Caffeine may also
increase the toxicity of certain other
drugs, such as paracetamol.
There are four caffeine-induced
psychiatric disorders recognized by
the Diagnostic and Statistical Manual
of Mental Disorders, Fourth Edition:
caffeine intoxication,
caffeine-induced anxiety disorder,
caffeine-induced sleep disorder, and
caffeine-related disorder not
otherwise specified (NOS).
Refer to article for more info and references.
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