The knees are subject to many types of mechanical and physical stress, which makes them vulnerable to several conditions. Four fluid-filled sacs called bursae occupy various sites at the front of the knee. These small sacs cushion knee bones and tendons, and reduce friction in the joint.

The knees are vulnerable joints, especially if you are active and engage in activities like running, skiing or cycling. Everyday activities, like climbing stairs, can also put a strain on your knees if you use improper form.

Several different conditions can lead to arthritis, or painful inflammation of your joints. In gout, a metabolic problem can cause joint pain because the body has difficulty getting rid of a waste product in blood called uric acid.

Turmeric is a bright yellow herb that has been used in cooking, dyes and Ayurvedic medicine in India and China for 2,000 years.

Upper back arthritis is not usually a disabling condition, but it can be painful if left untreated. Many symptoms can help you detect whether you have upper back arthritis. Most of the causes associated with upper back arthritis are age-related.

You can control most of the symptoms of irritable bowel syndrome, or IBS, with medication, diet and lifestyle changes, according to the National Digestive Diseases Information Clearinghouse. The most common symptoms of the condition include gas, bloating, cramping and diarrhea.

Your knee joint is able to move smoothly and friction free due to the constant presence of a substance known as synovial fluid.

Ocular migraines are migraines that affect vision. An ocular migraine generally starts as a blind spot in one's peripheral vision that increases over time. Although triggers and causes of migraines vary, certain foods have been shown to trigger or worsen migraines more than others.

Titanium bracelets are fashionable items, but as a form of magnetic therapy, they may also alleviate the pain of some conditions. Safe and easy to wear, titanium bracelets can lessen the symptoms of conditions such as arthritis and back pain.

Many physical activities and sports require jumping. When you land following a jump, your knees are at risk for injury because a great deal of force is placed on your bones, muscles and joints. This force can lead to strains, sprains and muscle tears.