Having a supportive social network may add years to your life, according to a review of studies covering more than 20 years. The review shows that people of all ages are twice as likely to die over a given time period if they are socially isolated, making isolation as bad for your health as better-known risks such as smoking or being an alcoholic.

What do we know already?

The link between social relationships and longer life is not new. It was first spotted in a study about 20 years ago.

But while other factors... 

Read More at Life and style: Health & wellbeing | guardian.co.uk