Attention Deficit Hyperactivity Disorder. Sufferers of ADHD are unable to focus their attention on anything, are very easily distracted, and often disruptive. The cause of ADHD is not yet known, though there is a mounting body of evidence that diet can exacerbate the condition.

Premature baldness, often in clumps (Alopecia Areata) affecting the whole scalp (Alopecia Totalis), or the whole body (Alopecia Universalis). Alopecia is a result of the immune system attacking hair folicles and stopping hair growth.

Autism is a development disorder, normally becoming apparent in the first three years of life. It impedes the development of communication and social skills, and often results in other symptoms such as repeated movements and oversensitivity to the senses.

Bells Palsy is a cranial nerve disease resulting in paralyzed and weakened facial muscles, normaly in one side of the face.

Depression is a mood disorder, characterized by extreme sadness. It is often a natural reaction to life's circumstances, but occasionaly the result of chemical imbalance in the brain.

Diabetes is a result of pancreas dysfunction, resulting in the body being unable to control sugar levels. There are two types of diabetes.

Type I - Insulin Dependent, or juvenile onset diabetes. Sufferers control their sugar levels by injecting insulin on a regular basis.

Type II - Non Insulin Dependent, or adult onset Diabetes. Sufferers control their sugar levels with diet.

Eczema, or dermatitis, is a group of skin conditions characterised by hot, dry and itchy skin. In severe cases the skin can break and bleed. It is much more common in childhood and if often caused by an allergy.

Epilepsy is the tendency to have epileptic siezures or fits. A siezure is the outward result of temporary abnormal brain functioning.

These two conditions are so similar that many consider them to be the same syndrome. Symptoms include aching muscles, tendons and joints, fatigue, irritable bowel syndrome, and headaches.

Haemorrhoids are enlarged blood vessels in or around the anus, which can cause pain, bleeding, itching, or the feeling of a lump in the anus. Haemorrhoids are often caused by pressure in the abdomen, from constipation, heavy lifting, or pregnancy. Piles are more common in countries where the diet is low in fibre.

Condition of too little thyroid hormone, normally following damage to the thyroid gland. The damage to the thyroid gland may be caused by an autoimmune disorder, or as a result of medical treatments. Symptoms include: fatigue, weakness, weight gain, dry hair and skin, muscle cramps and depression.

IBS is a bowel disorder reselting in abdominal pain, wind, bloatedness, and diarrhoea or constipation. It's causes are unknown, but it normally begins under stress or when there is a lot of fat in the diet.