If we understand how we function genetically, it is relatively easy to stay healthy. In previous articles, I have written that the genes decide how we should nourish our bodies. Which foods are good for us and which put us at risk. What sporting activities should we engage in, and so on.
A gene determines only one particular characteristic. But there are also genes – they are called pleiotropic – that have multiple characteristics. That is, a gene decides on several characteristics. It is relatively difficult for us to discover what is important in such a pleiotropic gene. The really fascinating thing is that these characteristics can also be diametrically opposed. A gene may have a very positive influence, for example in protecting against the development of dementia, but at the same time it may still pose a risk because of the presence of a complicating issue. Thus, a gene may be both positive and negative at the same time.
