How does it affect the digestive system
How does The Muscle system work?
How does junk food affect the muscular system?
According to the Centers for Disease Control and Prevention (CDC), the definition of obesity is when your body mass index (BMI) is 30.0 or higher. BMI is a calculation of your height and weight. You can calculate your BMI here. There’s also a category referred to as “extreme obesity,” which is defined as a BMI of 40. Across all race groups, one in three Americans is considered obese while one in 20 is considered extremely obese. Those statistics are higher in the black and Latino communities. Approximately 75 percent of people in these groups who are over age 20 are considered obese.
The Obesity Action Coalition (OAC) reports that the number of fast food outlets has doubled since 1970, a period during which the number of obese Americans also doubled. It’s likely that many factors have contributed to the obesity epidemic, but the correlation between the availability of cheap and fattening fast food and national weight increase is stark. Obesity increases the likelihood of heart disease, high blood pressure, kidney disease, diabetes, joint problems, and more. In 2008, obesity-related medical costs were estimated at $147 billion. Diabetes alone was estimated to be responsible for $69 billion just in lost productivity. Numbers like these suggest that the costs of cheap fast food are surprisingly high.
What happens to people who eat to much junk food?
How does a healthy diet help the body?
High blood pressure, or hypertension, may result in heart failure and premature death. A diet high in whole grains, poultry, fish and nuts but that limits red meat, fats, sweets and sugary drinks reduces the risk of developing hypertension. Salt and sodium intake is also a primary contributing factor in heart disease. Many processed and prepared foods have high sodium levels; avoid these products if you have any heart problems. For optimal results, combine a heart-healthy diet with regular aerobic exercise, which helps keep blood flowing and the heart pumping.
Energy and Growth
A healthy diet provides adequate amounts of vitamins and nutrients, which are essential for growth, energy and proper development. When vitamin levels are inadequate, serious health problems can result. Vitamin A deficiency, for example, can cause blindness in children and is particularly dangerous for pregnant women. Vitamin deficiency anemia is caused by insufficient vitamin C, folate and vitamin B12 levels, leading to extreme fatigue, dizziness, shortness of breath, weight loss and other undesirable symptoms. If you think you might have a vitamin deficiency, see your doctor for some dietary suggestions, and consider taking a daily multivitamin.
For maximum health results, avoid foods that contain trans fats or high amounts of sugar, cholesterol or salt. Although a healthy diet provides benefits on its own, it is best when combined with regular physical activity, so find a way to incorporate exercise into your daily routine. Avoid skipping breakfast, and always try to eat at least three meals a day, or five small meals throughout the day. Strive for balance, and avoid eating too much of one food group. The U.S. Department of Agriculture provides helpful dietary guidelines for specific ages and gender.