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How does a ECY stack work?

Smokescreen

Experienced Noob
Platinum
What does it do exactly that causes us to lose bodyfat on it? Or any other fat burner combo out there?
 
I seem to remember macro posting something ages ago that ECY is somehow less useful than regular old ECA. Something about the ephedra and yohimbine competing for something or other....wish I could find the thread.
 
Carth said:
I already found out the info from someone else. Thank you all for your efforts.

Id like to hear the report, if you have a few mins. I am curious myself. The best I could find was
"Yohimbine, an alpha-2 adrenoceptor antagonist is sometimes used to prolong and enhance the thermogenic effects of NE and adrenaline (AD), which can be released by ephedrine, pseudoephedrine, an amphetamine, or naturally from the sympathetic ganglia during intense exercise. However, blocking the sole manner in which the sympathetic nervous system inhibits its own feedback can result in malignant hyperthermia if you overdose on thermogenics."
 
From wikipedia:

Mechanism of effect in weight loss

The effects of the ECA stack in weight loss are primarily due to the ephedrine component. Ephedrine acts both as a beta agonist and stimulates the release of norepinephrine. Increased circulating norepinephrine in the body then acts on white adipose tissue by increasing cAMP levels. This causes a thermogenic effect, raising body temperature and increasing the user's metabolism in conjunction with the rest of the stack.[citation needed]
However, the body's negative feedback system then activates to normalize the metabolism. This is done via the production of phosphodiesterase inside the cells, and prostaglandins outside the cell, which both lower cAMP levels within the cell.
Caffeine inhibits the production of phosphodiesterase inside the cell and therefore slows cAMP breakdown. It also binds with and competitively inhibits adenosine receptors in the brain, triggering the release of epinephrine and increasing cAMP levels further.
Aspirin inhibits prostaglandin production outside of the cells, which, in conjunction with caffeine, greatly prolongs the thermogenic effects and increased metabolism by substaining elevated cAMP levels.
Ephedrine also has an anorectic, or appetite-suppressing, effect. However, these effects only last for about two weeks if the stack is not cycled, as the body becomes tolerant to ephedrine to some degree.[citation needed] It is estimated that 60% – 75% of the weight loss from using the ECA stack comes from the anorectic effect, and the remainder from thermogenesis.[citation needed]
The final component in weight loss of the ECA stack is that of a simple stimulant; the higher epinephrine and norepinephrine levels result in increased aerobic exercise performance and less fatigue.[citation needed]


ECA stack - Wikipedia, the free encyclopedia
 
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