It's 3 pm. Time for news from the World of Medicine.Does sitting make you sad?Australian researchers found that middle-aged women who sat for over 7 hours a daywere 47 percent more likely to show signs of depression than those who sat for 4 hours or fewer.Those who engaged in no physical activitywere 26 percent more likely to have symptoms of depression 3 years later than those who exercise regularly.Sitting for long periods has also been linked to heart disease.How can you detect a liar through text message?Watch for a delayed response.When college students were asked to tell a lie during an interview with a computer,they took 10 percent longer on average to send the message and they did more editing than usual.Can marriage beat cancer?Married people were 20 percent less likely to die from the disease than those who were unmarried,according to a Harvard study of more than 730,000 people.They were also more likely to get the disease detected at an earlier stage and receive proper treatment.A husband or wife can urge you to seek medical help
