NEW : A controversy at men 's gymnastics affects the medal winners . NEW : The queen 's granddaughter stays on course for an equestrian medal . Ryan Lochte of the United States finished fourth . A 15-year-old is among the young swimmers to top the medal stand . In a new study, scientists have found that people who are more religious tend to be happier and healthier than those with less faith in God or no religion.
NEW : A controversy at men 's gymnastics affects the medal winners . NEW : The queen 's granddaughter stays on course for an equestrian medal . A 15-year-old is among the young swimmers to top the medal stand . In a new study, scientists have found that people who are more religious tend to be happier and healthier than those with less faith in God or no religion.