World's Most Mysterious Diseases

The world’s most mysterious diseases may not be as uncommon as you think. In fact, there are some common diseases today that still puzzle a lot of medical experts, adding to the mystery of such conditions. Here are some of them.


Acquired immune deficiency syndrome is a relatively common disease affecting a growing number of humans year after year. It is actually a set of symptoms and infections resulting from a damaged immune system caused by the human immunodeficiency virus or HIV.

What makes the condition such a mystery is that experts have yet to find a way to fight of the disease, which remains incurable. But the puzzle remains on how to develop a vaccine for the human immunodeficiency virus. But up until now, even after 30 years worth of research, there is no effective vaccine yet in sight.

Alzheimer’s Disease

This is a relatively common yet still a mysterious degenerative disease affecting the brain. Although there are various common symptom associated with the disease, it can affect different people in quite unique ways.

The cause and the progression of the disease still remains a mystery among medical experts. As a result, a cure still remains undiscovered, even after decade’s worth of research that started since 1906, when the disease was first named.

Common Cold

Although a common condition that affects almost everyone all over the world, the common cold still continues to puzzle and confuse many doctors and experts.

A highly contagious viral disease affecting the upper respiratory system, the common cold still has no effective cure. Treatment for the condition only tries to manage the symptoms that the common cold causes.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a great mystery in that doctors do not have a means to directly diagnose the condition. Although it is characterized by prolonged bouts of fatigue, this symptom can also be attributed to a host of other disorders.

The only means that chronic fatigue syndrome can be diagnosed is until after all the other known disorders and diseases are eliminated as possible choices.


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