Tagged: Caffeine

Three coffees a day may help your heart stay regular - News

Jean Balchin Apr 23, 2018

Many doctors advise their patients with atrial or ventricular arrhythmias to stay away from coffee, coke, and other caffeinated beverages. However recent research published in JACC: Clinical Electrophysiology has revealed that coffee and tea at least are safe, and can reduce the frequency of arrhythmias. What are Arrhythmias? Arrhythmias are abnormal heart rhythms, and occur when the heart beats too slowly, quickly … Read More

Can coffee improve your workout? The science of caffeine and exercise - Guest Work

Guest Author Mar 01, 2018

Neil Clarke, Coventry University This article was originally published on The Conversation. Read the original article. Caffeine is one of the most researched substances reported to help athletes perform better and train longer and harder. As a result, professional and amateur sportspeople often take it as a performance-enhancing “ergogenic” aids for a wide range of activities. Read More

Comparing technology to drugs isn’t simply a question of addiction - Guest Work

Guest Author Jul 11, 2017

Greg Wadley, University of Melbourne Some experts say technologies such as social media and video games are like drugs. Others disagree. This debate is really about whether technologies are addictive. But the defining property of a psychoactive drug is not “addictiveness”, but the ability to change a user’s mental and emotional state. This ability – … Read More

Caffeine affects the circadian body clock - Sleep on it

Karyn O'Keeffe Sep 22, 2015

It has long been known that drinking coffee close to bedtime can increase the time that it takes to fall asleep and change the structure of our sleep.  It was thought that these effects were primarily mediated through caffeine’s alerting properties; it binds adenosine receptors which causes the release of excitatory neurotransmitters.  Research published this month in Science Translational Medicine by … Read More

Caffeine in the news again - Food Stuff

Amanda Johnson May 10, 2013

The caffeine debate has been reignited again following the 3 May announcement by the US Food and Drug Administration (FDA) that they are planning to launch an investigation into the safety of caffeine in food products, particularly its effects on children and adolescents. According to media reports, this latest review was prompted following the launch of a new … Read More

Spam Journalism #68 - MacDoctor

Jim McVeagh Jan 31, 2010

Spam Journalism: The spurious use of sensational headlines to add spice to an otherwise pointless article. Thanks to Crusader Rabbit for pointing me to this lovely bit of medical spam at News.com.au: Energy drinks’ ’serious’ heart risk JUST one energy drink can cause “serious heart conditions”, a world-first study has found. The report, according to Adelaide Now, has [...] Related … Read More

Heart Hit - MacDoctor

Jim McVeagh Oct 04, 2009

I read with some horror that a Herald on Sunday investigation has found an energy drink with 3333mg caffeine per litre in it. The Demon Energy Shot, which contains this horrendous amount of caffeine, gets around the Food Standard Authority regulations (which restricts caffeine to a level of 320mg per litre) by calling itself a [...] … Read More