The answer is heart disease. Eating a diet high in saturated fats and sugar definitely won't help you lose weight, nor would it help your sleep. If anything, it could make you lose sleep. Additionally, drug addiction is caused by using drugs, not eating food. By process of elimination, we find the answer is C.
Sodium ions help control blood flow, blood volume, osmotic balance, and pH.
The lower the level of the pyramid, the more important the needs are. On the most bottom part, you will see physiological needs such as the need for food and water, for shelter and for warmth, while higher up at the top you'll see things such as being esteemed as someone great or being successful at what you do. Those thing are higher because they rare less important for us than physiological needs.
