We all forget things once in a while. But Alzheimer disease, a condition older adults can get, is different from everyday forgetting.

Do you know someone who has - or had - breast cancer? Find out more in this article for kids.

Do you know an older person who has cataracts? Find out about this vision problem in this article for kids.

Heart disease, also called cardiovascular disease, mainly affects older people. Find out more in this article for kids.

Lou Gehrig's disease refers to a disorder called amyotrophic lateral sclerosis, or ALS. This disease damages the neuromuscular system, which allows the body to move.

A person with Parkinson's disease gradually loses the ability to totally control body movements. Find out more about this disease that most often affects adults.

Do you know an older person whose legs look like a road map with all those blue and purple squiggly lines? They're probably varicose veins.

Wrinkles! Everyone eventually gets at least a few. Find out why in this article for kids.

Can you imagine yourself with gray hair someday? Find out why it happens in this article for kids.