Obesity isn't the only problem associated with poor eating habits. Not providing your body with the proper nutrients can also lead to underweight and malnutrition. People who are underweight could not live as long as someone who is of ideal weight, or even overweight, in case of a famine. They tend to not do as well during medical tests and surgical procedures that require prior fasting (Sizer, Whitney, 2013, pg. 336). Malnutrition can cause body organs to slowly shut down.
Our brains are also affected by not eating right.
"Food is like a pharmaceutical compound that affects the brain," said
Fernando Gmez-Pinilla, a UCLA professor of neurosurgery and physiological
science who has spent years studying the effects of food, exercise and sleep on
the brain. "Diet, exercise and sleep have the potential to alter our brain health
and mental function. This raises the exciting possibility that changes in diet are
a viable strategy for enhancing cognitive abilities, protecting the brain from damage
and counteracting the effects of aging" (Wolpert, Science and Technology, 2008).
Eating a healthy diet can help ward off mental diseases such as depression and anxiety.
NIH. Medline Plus. Obesity
Retrieved from: http://www.nlm.nih.gov/medlineplus/obesity.html
Sizer, F. & Whitney, E. (2013). Nutrition: Concepts and Controversies (13th ed.). Mason, OH: Cengage Learning
Wolpert, S. (2008). UCLA News Room. Scientists Learn how what you eat affects your brain - and those of your kids.
Retrieved from: http://newsroom.ucla.edu/releases/scientists-learn-how-food-affects-52668