New animal-based research indicates that consistently eating processed foods may lead to obesity, inactivity, and feelings of lethargy. This appears contrary to some beliefs that laziness leads to obesity and suggests that a long-term pattern of eating junk food is to blame for obesity and its accompanying health problems. Lead researcher Dr. Aaron Blaisdell writes, “We are living in an environment with sedentary lifestyles, poor-quality diet, and highly processed foods that is very different from the one we are adapted to through human evolution. It is that difference that leads to many of the chronic diseases that we see today, such as obesity and diabetes.”
Physiology and Behavior, April 2014