caffeine

For the first time, a study presented "compelling evidence" that caffeine consumption is beneficial for memory.
Published in the issue of January 12, 2014 of the journal Nature Neuroscience, the study shows that consuming caffeine can improve memory and have a beneficial effect on capacity retention for up to 24 hours after consumption.
Research is considered an 'exclusive proof' that caffeine benefits to long-term memory because all involved participants took one tablet of 200mg of caffeine after seeing a series of pictures.

A study conducted in the Harvard School of Public Health, associated coffee consumption with a reduction of about 50% in the risk of suicide in men and women. The work was published in The World Journal of Biological Psychiatry.
Analysing data from three large studies involving more than 208,000 people, researchers found that those taking two to four cups of caffeinated coffee daily have a lower tendency to suicide than those who ingested decaffeinated coffee or does not drink.

A study published in the British Medical Journal found that drivers who consume coffee are 63% less likely to be involved in accidents. Scientists from the Australian George Institute for Global Health in Sydney did the research.
Besides caffeine, the researchers also considered the weight of the drivers, the routine of work, sleep and exercise, alcohol consumption and the distances travelled. All these points are part of a complementary strategy to maintain alertness in driving, according to the researchers.

Moderate consumption of caffeine, about five cups of coffee a day can reduce your sleep time, but does not give more energy or help you lose weight, according to a study by researchers at the Technical University of Lisbon.

Mothers-to-be who have a couple of mugs of coffee a day risk having an underweight baby, research suggests. Coffee may also make pregnancy last longer - but only by a matter of hours.

The amount of caffeine typically found in two cups of coffee can aggravate, if not be the main cause of male urinary incontinence, a new study suggests. Those involved in the study suggest that men who consume more caffeine are more likely to have this problem when compared to those who take less.