A study published in 2010 has suggested that brighter children in the UK and the US grow up to drink more alcohol. There is a very strong monotonic association between childhood intelligence (measured before the age of 16) and the frequency of alcohol consumption in their 20s, 30s and 40s. Very bright British children (with IQs > 125) grow up drinking nearly one full standard deviation more alcohol than their very dull classmates (with IQs < 75). So there is a clear association between alcohol consumption and IQ. The author concludes that in early humans, alcohol consumption would be accidental and achieved by consuming fermented fruits. So the liquid form of it can be traced back less than 10,000 years is therefore considered evolutionary novel. Because of this, it is posited that more intelligent humans would tend to seek its liquid consumption because doing so is evolutionary novel.
A recent study by the University of Illinois in Chicago also found a link between alcohol consumption and IQ, or at least cognitive function. Specifically, men who drank the equivalent of two pints of beer were found to be better at solving brain teasers and puzzles than their teetotal counterparts. The study found that men with a blood-alcohol level of 0.07% or higher solved 40% more problems than the sober control group and took 12 seconds to complete the task compared to 15.5 seconds for the sober group. The study found that men who drank a moderate amount of alcohol performed worse in tasks involving working memory but significantly better in creative problem solving.
A third study from the London School of Economics also found that women who graduated from college were more likely to admit daily drinking.
Alcohol consumption and IQ are related. So what should you do about it?
Despite what appears to be a clear relationship between alcohol consumption and IQ, is it not clear whether drinking alcohol can increase IQ. In fact, binge drinking can have disastrous consequences on the brain that are likely to adversely affect neurological functions including IQ.
One thing is for sure, if the smartest among us tend to drink more, it is probably OK to consume moderate amounts of alcohol in the context of a healthy diet and overall lifestyle. Who knows? Your most creative moments may appear after a glass of wine or a beer (or two).
If you want to test the results yourself, you can take an IQ test here, and see whether you score improves after a beer or two. CLICK HERE
Diet most definitely plays a part in improving or maintaining your IQ. There are plenty of foods which are reported to enhance mental alertness and even possibly enhance IQ. So you not only need to consider your waist line when it comes to diet, but you also need to consider the impact of what you eat on your brain and your mental processing abilities.
Let’s look at a list of possible IQ boosting foods. We will attempt to categorize them into moderately high evidence, medium evidence and low evidence of possible effects on the brain.
Moderately high evidence
Creatine: often used by bodybuilders, creatine is a nitrogenous organic acid that occurs naturally in vertebrates and helps supply energy to all cells in the human body. An Australian study found that creatine supplementation in the short term provided a significant boost in brain power including memory. Refinements on this study found that creatine supplementation was able to negative the negative effects of sleep deprivation.
Omega and fish oils: supplementation by either pregnant mothers or to young infants has been shown to increase IQs of children by up to 3.5 points. A study in northern England also found that pupil performance improved with fish oil supplementation. Some studies have also found that consumption of fish oils conferred an IQ advantage in adults. Although omega and fish oils are IQ boosting foods, the purity of the oils is also a critical component.
Medium-evidence IQ boosting foods
Gotu Kola: is a pervasive south Asian herb. Its supplementation has been shown to improve IQs of children with mental retardation by up to 10%. It is not clear whether this herb can achieve the same feet in normal children or adults.
Blueberries: some studies have found that their consumption may improve memory in older adults with age-related memory problems. Berries contain flavonoids have recently been found to confer positive benefits to the brain. Whether or not blueberries are really an IQ boosting food remains unknown, but these tasty foods certainly fall in the category of super foods and are thus worth adding to one’s diet.
Low-evidence IQ boosting foods
Gingko Biloba: is a herb that has long been claimed to boost memory and concentration. Although the strongest early evidence in its favor related to the treatment of Alzheimer’s, recent meta analyses have suggested that the herb does not alter the progression of the diseases and that memory or problem-solving abilities are not enhanced by its consumption. This one should really fall off the list of IQ boosting foods.
You may want to test your baseline IQ here, and to re-test once you have added these elements to your diet.