Fortunately, a new field of science called epigenetics gives us hope. Epigenetics indicates that although our genetic code is fixed, the way those genes are expressed is largely determined by the environmental factors within our bodies. Imagine planting the seed of a tropical tree fern in a hot, dry desert, it’s simply the wrong environment for it to grow. Genetics work in the same way.
Only 10% of our happiness is attributed to outside circumstances, which is often the things we work so hard to change, like our income, where we live, or if we get a distinction in an exam. Most people invest all their time in this area, working harder to earn more so they can be happy. In reality, it contributes very little to actual wellbeing and on average the effect is entirely gone after 12 months.