(May 11, 2010 - Insidermedicine)

From London – According to a report published in the European Heart Journal, working overtime may increase risk of heart disease. Researchers studied over 10,000 people, finding that those who worked 3 or more hours than a regular seven hour day had a 60% increased risk of developing heart disease, and suffering non fatal heart attacks and angina.  
From California – Sickle cell disease may also affect brain functioning, according to a report published in the Journal of the American Medical Association. Researchers compared nearly 150 sickle cell patients to 47 healthy controls, finding that the sickle cell group scored lower on tests gauging working memory, attention, processing speed and intellectual ability.
And finally, back to London – According to a report published in the Cochrane Library, caffeine can help shift workers reduce their mistakes. Reviewing over 13 trials, researchers found that caffeine outperformed placebo or naps in reducing errors, and also improved memory, attention and reasoning scores on neuropsychological tests.