Hip joint replacements can help patients regain normal mobility. But just like any surgery, there are risks involved in hip replacement. And women may have a higher risk than men when it comes to failure of the new hip.

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.

Dementia causes changes in the brain. But should brain imaging be used to diagnose Alzheimer’s disease? Experts say that doctors should use imaging cautiously.

Treatments for dementia target symptoms. Many help improve memory and thinking. But does improving symptoms lead to better quality of life?

Military service can be brutal on a person's body. But it may be even more brutal on a person's sleep. Insomnia, sleep apnea and too little sleep appear common among military personnel.

It's no fun to undergo surgery - especially if you're a kid. And perhaps the worst part is feeling pain afterward. Never fear! Playtime is here!

Nerve stimulation is an accepted treatment for chronic pain, but is not well understood when it comes to headaches. Researchers are looking at how effective a new stimulation device is at preventing migraines.

Migraine sufferers may tell you that bad weather can trigger their headache. But how much of a role does weather actually play in migraines and what effect do particular events like lightning have on these headaches?

An estimated 43 million Americans use pain medicine on a daily basis. Men taking daily doses of pain medicine may experience an unwanted side effect: low testosterone.