The second technique looked at to accompany the CBM was meditation, or a word that people are tending to use now, Mindfulness.

The idea of Mindfulness is by training the mind to be more present, our minds we learn to wander less, which will make us less stressed and less likely to go down the habitual paths of stress and anxiety.

Former Buddhist monk Andy Puddicombe believes that 10-20 minutes a day is enough to make a big psychological and physiological difference. With the huge advances in technology and the use of brain scanners, neuroscientists are beginning to agree.

But if it’s so easy why isn’t everybody doing it?

Andy Puddicombe explains that like all things the idea is easy, but the application like anything such as losing weight or going to the gym for example, takes daily, consistent work.

So how long do we need to train our brains to notice a significant change?

Seven to eight weeks was the challenge for Molesy to make changes to his brain patterns.

So where does the tendency to be more Negative or Positive come from?

It is currently believed we are a combination of the genes we have inherited and the events we have experienced through our lives.

Although there is lots of still vague theories about how personality comes about, cutting edge science is coming up with some exciting stuff.

At St Thomas’ hospital in London, Dr Tim Spectre who has been studying twins for 20 years has come up with some fascinating new evidence.

He believes that our personality is 50:50 genetic and environmental.

However what studies are now turning to is how twins who share the same DNA and environmental upbringing do, later in life end up so different.

Debby and Trudy are twins taking part in a study compiled of 30 twins.

Both of them grew up in the same environment and had the same friends for 20 years. They are both spookily similar.

The big difference is that Debby has clinical depression.

Tim Spectre studies at St Thomas’ recognised that something must have happened to their DNA.

Our genes are not fixed. As we age our genes are constantly changing and some are being switched on and off.

Science is being to think our genes are actually reflecting things like our environment and the lives we have led like a marker, or life lines.

Epigenetics, which is the study of genes, is considered one of the most exciting developments in modern medicine.

Science is proving that life events can actually change our genetic makeup.

It seems that in the case of Debbie, events in her adult life had made changes to her genes, that made her more vulnerable to depression.

But how does that help us? Find out in Part 4 how Epigenetics is proving that are genes are not as fixed as we once thought and that we really can change our DNA.