No one on Earth is getting any younger. And with age comes the higher health costs associated with a range of health conditions. Top among them may be dementia.

Total hip replacement and smoking cigarettes just don’t mix. That's because smoking can cramp the healing process. Even quitting just before surgery is better than not quitting at all.

Poor sleep is linked to a wide range of possible ailments. However, it also works the other way around. Poor sleep can also be a sign that illness is contributing to the bad sleep.

There are a lot of obvious reasons to quit smoking. But a lesser known reason to quit may be to help with back pain during treatment for spine issues.

Depression can make the most on-the-ball people feel like their brains are mush. In people with Alzheimer’s disease, depression may speed up disease symptoms.

The quality of care when getting a new knee shouldn't depend on patients' income. Treatment should be the same no matter who's under the knife. But lower income patients might feel better about their surgery than patients who earn more.

Lifestyle changes involved in treatment of long-term illnesses can take a toll. People with the biggest, long-term lifestyle changes may have the toughest time coping.

Childhood is an important time for developing skills and learning. Spotting and treating any developmental problems early is of special importance for those managing conditions like multiple sclerosis (MS).

Antioxidants - which are found in foods like soy products, coffee and fruits - have been shown to be healthy substances for the body. Researchers wanted to see if they could also lower risk of dementia and stroke.

Memory is often an area of concern for people with epilepsy. For children who are just learning about the world around them, memory can be of particular importance to their physical, mental, emotional and social development.