Your digestive system

What's happening

Age-related structural changes in the large intestine can result in more constipation in older adults. Other contributing factors include a lack of exercise, not drinking enough fluids and a low-fiber diet. Medications, such as diuretics and iron supplements, and certain medical conditions, such as diabetes, also might contribute to constipation.

What you can do

To prevent constipation:

• Eat a healthy diet. Make sure your diet includes high-fiber foods, such as fruits, vegetables and whole grains. Limit high-fat meats, dairy products and sweets, which might cause constipation. Drink plenty of water and other fluids.
• Include physical activity in your daily routine. Regular physical activity can help prevent constipation.
• Don't ignore the urge to have a bowel movement. Holding in a bowel movement for too long can cause constipation.