(HealthDay News) - About 7.3 million females in the United States aged 15 to 44 had difficulty becoming pregnant or carrying a baby to term in 2002, according to the U.S. Centers for Disease Control and Prevention.
The U.S. Department of Health and Human Services lists these factors that may contribute to female infertility:
- Age.
- Stress.
- Unhealthy diet.
- Being overweight or obese, or significantly underweight.
- Strenuous exercise.
- Smoking or drinking alcohol.
- Sexually transmitted disease.
- Health conditions that affect hormone production.
