Healthy: Connotations and Misconceptions The general idea of ​​being healthy has changed in various ways over the many centuries that humans have studied anatomy. Being healthy is more than just looking good, and the US military is a great example of this. Most military personnel do not have large muscles, but they are still extremely strong and surpass even professional bodybuilders. This is because muscle size and strength are much more independent of each other than many would initially believe (Mettler) (Phillips). Any doctor, anatomical expert or even a so-called "Health Guru" will tell you that the most important factor in changing a person's BMI is their diet. Many people refer to the laws of physics and biological imperatives when talking about diet. Basically the idea is that when a person consumes more calories than they use, then they are gaining weight. Gaining weight isn't always a bad thing, as most people looking to gain muscle mass need to gain weight to do so. However, the type of food you eat contains different “macronutrients” that can affect different growth factors in different ways. Generally the most feared and hated macronutrient is carbohydrate. It's technically not the most fattening nutrient (carbs provide 4 calories per gram while actual fats provide 9), however carbohydrates are much more numerous in foods that contain them. For example, white bread or ice cream contains a lot of carbohydrates because they are simple sugars, but they don't contain nearly as much fat. Carbohydrates at the basic level are made up of carbon, hydrogen and oxygen. It is these three elements that make up the simulation... in the center of the sheet... which they train. Works Cited Mettler, S. “Increasing Protein Intake Reduces Lean Mass Loss During Weight Loss in Athletes.” (2010): n. page. Network. March 31, 2014. .Phillips, SM. “Dietary Protein for Athletes: From Requirements to Optimal Adaptation.” Journal of Sports and Sciences. (2011): n. page. Network. March 31, 2014. .Hubal, Monica. “Variability in Muscle Size and Strength Gain After Unilateral Resistance Training.” (2005): n. page. Press. .