The Essential Triad
The trinity of food, sex and danger is so important that a large part of the brain is devoted to this purpose. In the psychological domain, it is often referred to as the old brain, or reptilian brain as we share this portion with almost all the animal kingdom. Our animalistic instincts cannot afford to miss any opportunity of the possibility of either of these elements of the essential triad. Probably, this is also the reason that the economy of the advertisement industry revolves around it. To sell cosmetics to underwear, we use sex. The food industry is booming due to the sheer essentiality of food. When nothing works, the danger is the perfect recourse, building empires in the insurance sector. The triad never fails to make sales. Most successful commercials use these basic psychological and physiological needs in their favour.