Aerobic exercise can alter the number of red blood cells in several ways. Red blood cells carry oxygen and carbon dioxide through the bloodstream. In general, endurance training increases the number of red blood cells. However, in some cases, exercise can also lead to their destruction.

Nearly 14 million -- that's how many people ages 50 and up are expected to have osteoporosis by 2020, according to the National Osteoporosis Foundation. That statistic can be a motivator to make bone health a priority in your life. Evaluating your calcium intake is likely one of your first considerations.

People with diabetes are twice as likely to have a heart attack or stroke, according to the National Institute of Diabetes and Digestive and Kidney Disorders. Controlling blood sugar and lowering blood cholesterol levels can reduce the risk.

Approximately 17 percent of adult Americans have high cholesterol, reports the Centers for Disease Control and Prevention. If you are among them, you face a greater risk of heart disease, heart attack and stroke than those with healthy cholesterol levels.

Vitamin deficiency is normally not the main cause of a low white blood cell count. Powerful infections such as AIDS or cancer are the main culprits.

If you are wondering whether exercise will decrease the length of your period, the short answer is yes. The long answer, however, depends on a number of factors.

Hemoglobin is the protein in red blood cells that transports oxygen from your lungs to the rest of your body. Because iron is an important component of hemoglobin, consuming iron-rich foods will raise your hemoglobin levels. Low hemoglobin levels can lead to iron deficiency anemia.

Hypoglycemia, or low blood sugar, occurs during pregnancy because hormones can affect how your body processes glucose. You'll also be using more energy -- growing a baby can be hard work -- so you may need to adjust your eating habits.

Deep venous thrombosis, or a blood clot, can occur anywhere in the large veins of the leg. A DVT is a dangerous condition, because the clot may break free from the vein and travel to the lungs or heart.

Caffeine, in its various forms, is one of the most popular and widely used drugs and food additives in the world, with around 90 percent of people ingesting it in one form or another, according to the U.S. Food and Drug Administration.

Blood sugar levels that become too high or too low can cause a variety of health problems and can even be life-threatening. Mild, moderate and severe blood sugar fluctuations can also affect your mood and behavior.

Vegetarian diets don't always center around healthy vegetables. Instead, in place of meat products, sometimes processed and high-fat foods are the centerpiece of a vegetarian diet. This type of diet is unhealthy and increases the risk for high cholesterol. High cholesterol is a risk factor for heart disease, the No.