Around age 40, a person's vision starts to change. Trouble seeing up close can require the use of special glasses or multi-focal contacts. Other common changes a person might notice as they age is a diminished ability to see colors or adjust to glare. These are normal occurrences that do not stop a person from living an active life. Common Eye Dise...

Our sense of smell is one of our five senses. It is an important sense that can help alert us to potential threats: gas leaks, rotten food or the smell of a fire. It is also closely tied to parts of the brain that process memories and emotions. Like music, particular smells can trigger good or bad memories. Like many things that change as we age, o...