Iq, Intelligence | featured news

The researchers didn't find the same IQ dip for people who became frequent users of pot after 18. Although experts said the new findings are not definitive, they do fit in with earlier signs that the drug is especially harmful to the developing brain.

The canine IQ test results are in: Even the average dog has the mental abilities of a 2-year-old child. The finding is based on a language development test, revealing average dogs can learn 165 words (similar to a 2-year-old child), including signals and gestures, and dogs in the top 20 percent in intelligence can learn 250 words.

A study has found that the thickness of the insulation of our brain's white matter is directly linked to IQ.