Q.1 Diabetes occurs when a hormone called Insulin which the body usually makes to help take the sugar out of the blood and burn it to make energy is not made properly. The lack of insulin causes the sugar level in the blood to become higher and higher. This is diabetes. The treatment may involve a combination of a reduced sugar diet, tablets to increase the ability of the body to make insulin or sometimes injections of insulin.
Q.2 One in five, or 20% of eighty year olds suffer from dementia...reduced memory, confusion etc.
Q.3 A "Nervous breakdown" is not a medical term. There is not really any medical meaning behind the term.
Q.4 Although problems with the heart and kidneys can cause high blood pressure, there is most commonly nothing that can be found to be wrong with either in someone who has high blood pressure.
Q.5 Helicobacter Pylori is a germ sometimes found in the stomach. If the person carrying it has a stomach ulcer, getting rid of the germ with a special course of antibiotics will often improve their symptoms.
Q.6 Eight percent of the population suffer from true "migraines". The term migraine does not apply to all headaches, only particular types of headache.