"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: A rash of companies have started offering services to ...

IQ testing cannot be used to evaluate children under the age of 2. To be tested, children must be verbal and able to talk. Even if a baby is verbally advanced, IQ tests are not designed for children ...

A rigorous nine-year research review looking at the relationship between fluoride and intelligence in children concludes that as fluoride levels rise, IQ drops. Every 1 part per million increase in ...