Benko, C. R., Farias, A. C., Farias, L. G., Pereira, E. F., Louzada, F. M., and Cordeiro, M. L. Potential link between caffeine consumption and pediatric depression: A case-control study. BMC.Pediatr 2011;11:73. View abstract. Some studies exploring the relationship between coffee consumption and the risk of disease have suggested an increased risk of heart disease, while others have shown potential health benefits, including a reduced risk of type 2 diabetes ( 5, 6, 7). Bell, D. G. and McLellan, T. M. Effect of repeated caffeine ingestion on repeated exhaustive exercise endurance. Med.Sci.Sports Exerc. 2003;35(8):1348-1354. View abstract.

Caffeine can cause insomnia so people often avoid it in the evenings so that they can sleep properly. The half-life of caffeine is around 5 hours, meaning that after a cup of coffee at 6pm, an individual will still have half the caffeine left in their body at 11pm, and a quarter at 4am, disrupting sleep. Individuals vary in their reaction to caffeine, so the half-life could be much longer or shorter than 5 hours. In one study, 16 people who typically consumed high, moderate or no caffeine took part in a word test after going without caffeine overnight. Only high caffeine users showed a bias for caffeine-related words and had strong caffeine cravings ( 31). Kanani adds that those with certain heart conditions should reduce their caffeine intake, definitely keeping it below the 400 mg threshold. Coffee’s laxative effect has been attributed to the release of gastrin, a hormone the stomach produces that speeds up activity in the colon. What’s more, decaffeinated coffee has been shown to produce a similar response ( 19, 20, 21).

Who needs to cut down on caffeine?

Extremely high daily intakes of 1,000 mg or more per day have been reported to cause nervousness, jitteriness and similar symptoms in most people, whereas even a moderate intake may lead to similar effects in caffeine-sensitive individuals ( 9, 10). Symptoms of overdose may include agitation; anxiety; confusion; frequent urination; irregular or fast heartbeat; muscle twitching; ringing in the ears; seizures; stomach pain; trouble sleeping. Proper storage of Caffeine:

The command line is now interpreted and shows in the tooltip. This means you can see what Caffine has recognised. Astorino, T. A. and Roberson, D. W. Efficacy of acute caffeine ingestion for short-term high-intensity exercise performance: a systematic review. J Strength Cond.Res 2010;24(1):257-265. View abstract.Chewing gum that contains caffeine may increase your alertness and attention span. Certain caffeinated versions, such as RunGum, provide 50 mg of caffeine in two pieces of gum ( 27). Arciero, P. J. and Ormsbee, M. J. Relationship of blood pressure, behavioral mood state, and physical activity following caffeine ingestion in younger and older women. Appl Physiol Nutr Metab 2009;34(4):754-762. View abstract. These side effects include heart palpitations, anxiety, insomnia, and increased blood pressure and heart rate ( 1).