Insomnia is the most common sleep disorder, affecting one in four people.  It is well-known that sleep problems can significantly diminish quality of life. However, many people may not realize that insomnia and short sleep duration correlate with various health problems including cardiovascular disease, anxiety, and potentially cancer. Insomnia also increases mortality in adults (Chien 2010; Hublin 2011).

Approximately 10 – 35% of the population (depending on countries) suffers from non-alcoholic fatty liver disease or NAFLD. Many of its victims do not know they have it. NAFLD can go undetected for years and may eventually progress to inflammation and scarring of the liver (cirrhosis) and, in some cases, full-blown liver failure.

Osteoarthritis is a very common degenerative joint disease and a leading cause of disability. This progressive disease is characterized by structural damage and functional impairment within joints.

The sensation of pain arises in the nervous system. It has a variety of causes, but the experience of pain is variable and subjective. Pain can be acute or chronic.  Acute pain is a protective mechanism that makes you aware of an injury.  In contrast to acute pain, chronic pain is persistent and can last for months or years.