Human feelings while passing through the course of human evolution (Marlene 2013) with various genetic structural developments were closely related with life regulations (Damasio&Carvalho 2013) although these were subject to selection pressures but these remained related with the welfare part of human and played a role in fitness, coping and responding whether due to epiphenomenalism or otherwise (Broom 1998).
Hominids and later the ‘hunter gatherers’ evolution was there approximately two million years ago, whereas, human shift to agriculture is only 10,000 years old and popular use of agriculture by majority started two to three millennia earlier (Kaplan, Gurven, Hill &Hurtado 2005). Interestingly as human society evolved food system evolved from simple to complex Philip (2007) in (Floros, Newsome, Fisher, Barbosa‐Cánovas, Chen, Dunne, …&Knabel 2010). And multiple questions related with evaluation, acquisition, sharing, labor or other could be related with the present day complexity of food system those are required to be addressed (Floros, Newsome, Fisher, Barbosa‐Cánovas, Chen, Dunne, … &Knabel 2010) to improve survivorship more, that is a product of life history traits(Bochdanovits, & de Jong 2003) and to find further ways those could add into better human survivorship in desirable directions, a few of these aspects rarely been studied systematically so far(Kaplan, Gurven, Hill &Hurtado 2005)?
Eating and consuming food is a top most factor related with healthy human survival. It is a complex interplay of various factors like human mechanisms those play a role in homeostasis, neural reward systems, child’s social , emotional, motor and sensory capabilities (Gahagan2012) Therefore, eating is not merely a biological mechanism it has psychological and sociological aspects as well those are directly related and could have basic role in the various behaviors like obesity, anorexia, body weight index (BMI), prevailing standards for masculinity and femininity because the role of food is so important in survival that food preference shift in different climates guaranteed survivorship (Bochdanovits& de Jong 2003) and eating disorders even today are directly related with health those negatively affect performance and fitness and in certain cases demand medical interventions(El Ghoch, Soave, Calugi&Dalle2013)