What is the key difference between recent generations?

Differences between recent generations have been commented on. The key difference between recent generations is earlier exposures to dietary antioxidants and higher total exposures to dietary antioxidants over the course of time with each succeeding generation.

Dietary antioxidants, for example, from natural flavors and plant extracts, can have epigenetic effects which can result in difficulties where diets are laden with such dietary antioxidants.