There's one thing that stands out.
Couples who've been together for many decades usually put the success of their relationships down to things like good communication or tolerance.
Researchers have found that the real issue for most couples is 'emotional warmth'. And yes, you can use the idea at work too.
Only about 10 per cent of people achieve the goals they set for themselves. Twenty five per cent of people who make New Year resolutions give up after the first week.
We can do better with some techniques that work.
Here's what does.