Thyroid problems usually involve abnormal production of hormones. Conditions can range from harmless to life-threatening.

Heart disease often refers to restricted or blocked blood vessels. It can also refer to heart rhythm problems or defects.

Arthritis is an inflammation of the joints that causes pain and stiffness. There are many types of arthritis, with different causes and treatment options.

Osteoporosis causes bones to become weak and brittle making minor falls or bumps problematic. Fractures will often occur in the hip, wrist, or spine.

When your body fails to produce enough insulin, excess glucose builds up in the bloodstream. This leads to diabetes and other serious conditions.

Liver disease is often genetic or can be caused by viruses or alcohol use. Digestive disease includes conditions like irritable bowel syndrome and lactose intolerance.

Respiratory diseases range from mild conditions such as the common cold, to life-threatening such as lung cancer. 

High blood pressure (or hypertension) over time causes damage to blood vessels and the heart. It can lead to heart attack or stroke.