(And the human body!)
3 HUMAN BODY SYSEMS
The main function of the Skeletal System is to give the body support, and to make sure that important organs like the heart, lungs, etc are protected. The skeletal system holds all of the digestive system in place. Also the skeletal system helps your teeth break down all of your food. The skeletal system contributes to homeostasis by maintaining a certain level of cells at all times to give you a balance of calcium.
The main function of thee Nervous System is to make sure that you can feel your surroundings. Without the Nervous System, nobody would have the ability to walk. Without the nervous system we would not be able to digest our food when we are unconscious. The nervous system takes care of all the digestion that needs to be done without you even having to worry about it.
The main function of the Muscular System is to help you with moving, the muscles in your body make up almost 1/2 of your weight because there is a muscle you use for every single possible movement that you do. The muscular system helps the digestive system because certain muscles such as the stomach, esophagus, small and large intestine etc are extremely important when it comes down to the process of digestion. When you get too cold the muscles in your body generate heat.
Digestive System / what we eat
A good way to get a good balance of fruits, vegetables, dairy, meat and fat is to record what you eat and improve on what you have been eating, for example, you can record what you ate on Monday, and on Tuesday you make something that covers more sections of the food pyramid then what you ate on Monday.
Its also a good idea to get advice on healthy food from magazines, cooking channels and restaurants. Space out what you eat and make sure that you aren't having to much of the same thing.
You can learn how to make healthy, homemade deserts once every week or so and it will be O.K.
You may not realize it at first but having a healthy life style will seriously impact your life.