Talk:Caffeine

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Caffeine is a former featured article. Please see the links under Article milestones below for its original nomination page (for older articles, check the nomination archive) and why it was removed.

This article appeared on Wikipedia's Main Page as Today's featured article on September 16, 2006.

Article milestones
Date	Process	Result
January 22, 2006	Featured article candidate	Not promoted
August 20, 2006	Peer review	Reviewed
September 7, 2006	Featured article candidate	Promoted
December 9, 2011	Featured article review	Demoted
Current status: Former featured article

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assorted problems

Addiction - some degree of aversion may actually occur, which? (with?) people preferring placebo

Fixed Sizeofint (talk) 06:11, 14 February 2017 (UTC)[reply]

Effects of genetics - and beta-1 and beta-2 play roles - beta-1 & beta-2 should be fully identified here (rather than in a following sentence).
people with the heterozygote? (heterozygous?) ADR beta-2
Beta 2- (is it beta-2, beta2, or beta 2? - be consistent) adrenoceptors are receptors that regulate glycogenolysis, secret? insulin (insulin secretion,?) and intramusculatly transport? (intramuscular transport of? - I doubt the receptor transports insulin or glucose itself) glucose
Arg389 homozygotes? (homozygous?) subjects
altered norepinephrine (an adrenoceptor agonist) neurotransmission contribute? (contributes?) to
Biosynthesis - The text describes chemical synthesis, not biosynthesis.

Fixed It describes both I think, but I have changed the title. Sizeofint (talk) 18:40, 6 June 2017 (UTC)[reply]

Figure - lab synthesis - where does the nitroso (NO) group come from?

See http://www.umich.edu/~chemh215/CHEM216/HonorsCup/HC%20230-III.pdf. I think that the originator of the graphic forgot a step.JSR (talk) 18:57, 6 June 2017 (UTC)[reply]

Analogs - have also been elucidated? (identified?).
Products - and inhalation? (inhalants?).
Caffeine content in select food and drugs - 12 fl. oz. Coca-Cola Classic is listed as 34 mg and 96 mg/L but the same size Guarana Antarctica is given as 30 mg (less) and 100 mg/L (more - inconsistent).

69.72.92.65 (talk) 06:36, 6 February 2017 (UTC)[reply]

I've added some bullets to ease parsing. Hope you don't mind. Sizeofint (talk) 07:11, 6 February 2017 (UTC)[reply]

     I had started each item on a separate line but the returns were mysteriously deleted when I saved the page. Any idea why and how to prevent this?
          69.72.92.92 (talk) 07:57, 11 February 2017 (UTC)[reply]

Wiki markup is often a bit mysterious. For instance, if you insert one or more spaces at the beginning of a new line, standard Wikipedia formatting will be absent from resulting text. (You inserted six spaces above, and look what happened.) To answer your specific question: see Help:Wiki_markup#Line_breaks. Rivertorch^FIRE_WATER 07:15, 12 February 2017 (UTC)[reply]

Unarchived, some day I'll get around to this. Sizeofint (talk) 08:37, 25 October 2017 (UTC)[reply]

Possible additions?

Aepli, A., Kurth, S., Tesler, N., Jenni, O. G., & Huber, R. (2015). Caffeine consuming children and adolescents show altered sleep behavior and deep sleep. Brain sciences, 5(4), 441-455.

Baer, R. A. (1987). Effects of caffeine on classroom behavior, sustained attention, and a memory task in preschool children. Journal Of Applied Behavior Analysis, 20(3), 225-234. doi:10.1901/jaba.1987.20-225

James, J. E., Kristjansson, A. L., & Sigfusdottir, I. D. (2011). Adolescent substance use, sleep, and academic achievement: Evidence of harm due to caffeine. Journal of Adolescence, 34, 665–673.

James, J. E., Kristjansson, A. L., & Sigfusdottir, I. D. (2015). A gender-specific analysis of adolescent dietary caffeine, alcohol consumption, anger, and violent behavior. Substance Use & Misuse, 50(2), 257-267. doi:10.3109/10826084.2014.977394

Jin, M. J., Yoon, C. H., Ko, H. J., Kim, H. M., Kim, A., Moon, H. N., & Jung, S. P. (2016). The relationship of caffeine intake with depression, anxiety, stress, and sleep in Korean adolescents. Korean journal of family medicine, 37(2), 111-116.

Kristjansson, A. L., Sigfusdottir, I. D., Frost, S. S., & James, J. E. (2013). Adolescent caffeine consumption and self-reported violence and conduct disorder. Journal Of Youth And Adolescence, 42(7), 1053-1062. doi:10.1007/s10964-013-9917-5

Richards, G., & Smith, A. (2015). Caffeine consumption and self-assessed stress, anxiety, and depression in secondary school children. Journal of psychopharmacology, 29(12), 1236-1247.

Temple, J. L., Ziegler, A. M., Graczyk, A. M., & Crandall, A. (2017). Effects of acute and chronic caffeine on risk-taking behavior in children and adolescents. Journal Of Psychopharmacology, 31(5), 561-568. doi:10.1177/0269881117691568

Mnlim (talk) 04:41, 29 July 2017 (UTC)[reply]

Relevant new content is welcome :)! Just keep in mind WP:RS and WP:MEDRS. Unless you're up for adding this content yourself, it may take a while for someone to integrate it. Sizeofint (talk) 05:31, 29 July 2017 (UTC)[reply]

Hi all, I will no longer be moving forward with adding these sources to the page. How can I go about removing this post? Thank you! Mnlim (talk) 01:26, 9 August 2017 (UTC)[reply]

There really is no need to. This post will be archived in several months and it is possible another editor will find these sources useful. Sizeofint (talk) 16:22, 9 August 2017 (UTC)[reply]

Edit request

"It is weakly basic (pKa = ~0.6)" should read "It is weakly basic (pKa of conjugate base = ~0.6)". The footnote makes clear that that was the intended meaning. — Preceding unsigned comment added by 73.189.240.68 (talk) 15:33, 5 August 2017 (UTC)[reply]

Done Sizeofint (talk) 16:29, 9 August 2017 (UTC)[reply]

Semi-protected edit request on 22 August 2017

This edit request has been answered. Set the |answered= or |ans= parameter to no to reactivate your request.

Remove the part which states 'Smoking tobacco increases caffeine clearance by 56%' The source makes no mention of that figure (56%) and does not directly say that tobacco smoke increases caffeine clearance. 109.255.138.123 (talk) 16:44, 22 August 2017 (UTC)[reply]

It is there, see table 1. Sizeofint (talk) 18:22, 22 August 2017 (UTC)[reply]

I can't see it as I don't want to pay 50 euro to download it. It's a bit silly to reference things on wikipedia without the average person being able to see the cited reference. However, I'll take your word.109.255.138.123 (talk) 10:24, 23 August 2017 (UTC)[reply]

It is reproduced here http://www.recoveryonpurpose.com/upload/Drug%20Interactions%20With%20Smoking.pdf Sizeofint (talk) 16:13, 23 August 2017 (UTC)[reply]

Edit Request

"Commercial supplies of caffeine are not usually manufactured synthetically because the chemical it is readily available as a byproduct of decaffeination." should read "Commercial supplies of caffeine are not usually manufactured synthetically because the chemical is readily available as a byproduct of decaffeination." 205.145.107.53 (talk) 22:50, 16 November 2017 (UTC)[reply]

Done Shellwood (talk) 22:56, 16 November 2017 (UTC)[reply]

Side effects - Physical

I've bracketted out the claim that long term consumption causes chronic arterial stiffness - because the attatched citation: Mahmud, Feely J., does not say this - least not in the abstract. It only says stiffness increases acutely. Feel free to delete the bracketed material completlely or challenge me if you do see this supported in another part of the citation. Best email me as I dont come here often. Trev M ~ 22:51, 23 November 2017 (UTC)[reply]