The major difference between the eating habits of our ancient ancestors and the way we eat today is that when compared to our ancestors, we expend minimal amounts of energy in obtaining our food, thus our caloric needs are much lower.
<h3>Adults today are less healthy than their predecessors in earlier generations.</h3>
The adults of today are less "metabolically" healthy than their counterparts from earlier generations, while having longer life expectancies. A significant cohort research from the Netherlands that evaluated generational changes in a number of identified metabolic risk variables for cardiovascular disease came to this conclusion. The researchers evaluated the patterns and came to the conclusion that "the more recently born generations are doing worse," and they issue a warning that "the prevalence of metabolic risk factors and the lifetime exposure to them have increased and probably will continue to increase."
Every organism has a certain range of requirements called a niche. The competitive exclusion principle states that two organisms cannot occupy the exact same niche without one out-competing the other. Niche partitioning is basically changing some aspects of a niche so that there is no need for competition.
