/ LIFESTYLE / FAMILY / FRIENDSFriendsFRIENDSFRIENDS Who are your real Facebook friends?The idea that people have thousands of internet friends is an urban myth, researchers say.FRIENDS Live long and prosper - with friendsWant to be healthy? Hit the gym. Eat nutritious foods. And hang out with people.FRIENDS Feeling sad? Your dog can sense itEvidence shows that our four-legged friends do have the ability to recognise human emotions.FRIENDS How good friends keep you healthyWhether young or old, being sociable helps keep illness at bay, research shows.FRIENDS Smoking can harm pets too, say expertsPets exposed to 'smoky' environments are at risk of animal cancers, cell damage and weight gain.FRIENDS The year to set resolutions for petsWhy not consider making a change or two that will improve the lives of your beloved pets?FRIENDS Why vegetarian pet food is a bad ideaThe trend for meat-free pet food is putting animals at risk of serious health problems, warn experts.FRIENDS Why dogs are our best friendsDogs are man's best friend for a reason, and Italian researchers think they know why.