What Is Correlation? Correlation and Causation. Examples of Correlation/Causation Confusion. Murder rates affect IQ tests scores: study. Straight A's in High School May Mean Better Health Later in Life. Happiness wards off heart disease, study suggests. Being happy and staying positive may help ward off heart disease, a study suggests. US researchers monitored the health of 1,700 people over 10 years, finding the most anxious and depressed were at the highest risk of the disease. They could not categorically prove happiness was protective, but said people should try to enjoy themselves. But experts suggested the findings may be of limited use as an individual's approach to life was often ingrained. At the start of the study, which was published in the European Heart Journal, participants were assessed for emotions ranging from hostility and anxiousness to joy, enthusiasm and contentment.
They were given a rating on a five-point scale to score their level of positive emotions. By the end of the analysis, some 145 had developed heart disease - fewer than one in 10. But for each rise in the happiness scale there was a 22% lower risk of developing heart disease. It is not the first study to suggest there is a link between happiness and health. Correlation or Causation. Children who drank whole milk had lower risk of being overweight or obese Dogs can help you live longer, as if you needed another reason to get one Research article Baby teeth may identify ADHD People with happy spouses may live longer Taller people more prone to cancer Checking phones in lectures can cost students half a grade in exams These 3 personality traits affect what you earn -- but only after age 40 Watching too much TV can KILL you Internet use in class leads to lower test scores Multiple sclerosis: Is yawning a warning?
Risks of harm from spanking confirmed by analysis of five decades of research One hour of extra screen time drags down teenagers' grades Lack of sleep may shrink your brain Low self-esteem "shrinks brain" Religious experiences shrink part of the brain To spoon or not to spoon? Why you should talk to your baby Study suggests Southern slavery turns White people into Republicans 150 years later actual study here Early language skills reduce preschool tantrums, study finds OMG!