Question 1

can caffeine cause anexity?

Accepted Answer

Hmmm...: What do you mean by anxiety?  In my way of thinking, caffeine (espcially in normal amounts) as a drug does not have the pharmacological property of causing ANXIETY.  However, EXCESS caffeine usage in an individual can, by a different number of ways (i.e. too much as in Energy drinks, withdrawal as in cutting back or sudden cold turkey) cause jitteriness, nervoussness, shakiness, etc.

Question 2

can caffeine cause freckles?

Accepted Answer

No: Freckles are caused by sun exposure.

Question 3

what causes an unusual sensitivity to caffeine?

Accepted Answer

Unanswerable: Please re-ask this question with the words "unusual sensitivity' explained. This is not a medical diagnosis or term or common condition.

Question 4

why and how exactly caffeine causes "sugar crash" ?

Accepted Answer

All stimulants: work like adrenaline, and increase the body's metabolic rate, so we burn more fuel to ensure that we can meet the "fight or flight" response.  So we burn sugar more rapidly, and the low blood sugar actually further increases adrenaline and related chemicals (like dopamine) leading to a vicious cycle.

Question 5

can caffeine cause itching?

Accepted Answer

Yes: I have heard of this happening to others.

Question 6

can caffeine cause constipation?

Accepted Answer

Yes and not: Caffeine being a stimulant can cause you to have a bowel movement.  However it can cause dehydration and therefore lead to constipation.

Question 7

will caffeine cause an anxiety attack?

Accepted Answer

Caffeine can trigger: A panic attack as can the combination of caffeine and sugar. If you are prone to panic attacks avoid both caffeine and processed sugars.

Question 8

can caffeine -coffee  cause a headache?

Accepted Answer

No: Caffeine does not directly cause headache, too much of the substance can trigger “caffeine rebound.” A caffeine rebound headache occurs from withdrawal of caffeine after a sufferer continually consumes too much of the substance.

Question 9

how does caffeine cause withdrawal headaches?

Accepted Answer

Bloodvessel dilation: Caffeine withdrawal headache is the result of temporarily increased sensitivity to a natural body chemical called Adenosine which dilates blood vessel to cause headache. When caffeine is being consumed, Adenosine receptors are blocked and the body responds by producing more Adenosine receptors. If no caffeine then body has excessive Adenosine on receptors that dilates blood vessel that createspain.

Question 10

can caffeine pills cause neurotxicity (neuron death)?

Accepted Answer

Maybe, if...: ... you're a lab rat being given huge doses. No evidence caffeine is "neurotoxic" in us. "Neurotoxicity" used as you are using it is like saying your car has "engine trouble": It's meaningless without a specific definition. Which nerves? We have a lot of different kinds. Timeline? Permanent or temporary? What is specific pathology? There are all kinds of qualifiers.

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