Nearly 2 million older people in the UK say they feel invisible or ignored.
Loneliness is said to be more damaging than obesity and causes depression, stress and anxiety.
But one scheme in Winchester has become a 'real lifeline' for those who feel alone.
The Winchester Live at Home scheme has changed the life of 101-year-old Joan Hendry.
She has been a widow for 50 years and has no family living nearby.
Volunteer befriender Barbara calls her once a week and visits her as well.
There are 40 befrienders like Barbara, helping around 60 people.
But there's always a need for more.
In a hectic world loneliness is a growing problem.
It is said to be more harmful to our health than smoking 15 cigarettes a day or obesity.
It can cause high blood pressure, sleep problems, stress, anxiety and depression.
Another initiative hoping to tackle loneliness and isolation is the Chat-Tea Café which was set up in the city one year ago.
Up to 50 people attend every month and strong friendships have formed.
For some it is the only contact they have with others the entire week.
Age UK says 2 million people could be affected by loneliness by 2026 unless more is done.