The oldest baby boomers in the US are now in their 70s, while the youngest are approaching their 60s. And according to Gizmodo, a new study reveals boomers are experiencing a drop in cognitive function as they age, relative to previous generations. What's more, Gizmodo reports future aging generations may be at a similar heightened risk. Study author Professor Hui Zheng says the decline was seen in all groups: men and women, and across all races, ethnicities, education, income, and wealth levels. Contributing factors may include sedentary lifestyles, chemical additives to food, and a lack of universal healthcare in the US.