Social media can be a great tool to keep in touch with friends – but if you are already lonely, it could make things worse.
It's less about making more friends and more about changing the way we see the world.
Social isolation is linked to higher blood pressure, lower cognitive abilities and even increased chances of premature death.
The long, dark days of winter can be a particularly lonely time for some people. But hermits, in many religious traditions, often found joy in being alone.