[smart (OP)]

I am strongly addicted to caffeine. When I don't drink enough coffee, I get weird symptoms and serious headaches. So I was wondering, is it possible that caffeine increase cerebral blood flow (CBF) ?

What do you think?

[evan_au]

When I don't drink enough coffee, I get weird symptoms and serious headaches.

Another addiction?
See: https://en.wikipedia.org/wiki/Caffeine_dependence

[smart (OP)]

Another addiction?

I almost predicted that comment of yours, evan...

[smart (OP)]

Can someone please help me to interpret the results of this study: https://www.ncbi.nlm.nih.gov/pubmed/19219847

[Colin2B]

Can someone please help me to interpret the results of this study: https://www.ncbi.nlm.nih.gov/pubmed/19219847

Caffine reduces cerebral blood flow (CFB) in both subjects who had abstained and in those who were consuming their normal amount of caffeine.

[smart (OP)]

Why is caffeine good for headaches and migraines, if it decreases cerebral blood flow?

[chiralSPO]

Why is caffeine good for headaches and migraines, if it decreases cerebral blood flow?

Migraines are very complex (and not very well understood), but one of their features is a vicious cycle of inflammation. Something triggers the cycle, causing inflammation, which brings more blood to the brain, worsening the initial problem, increasing the inflammation... etc. Because caffeine reduces the blood flow (slightly) it can put a damper on the vicious cycle (caffeine by itself doesn't usually cure bad headaches, but when combined with other treatments, the outcome is much better than either alone)

[evan_au]

I almost predicted that comment of yours, evan...

It's good to know that I am somewhat consistent...

Hopefully with somewhat consistent evidence to back it up