It is a well known fact that the earlier a medical condition is recognized and correctly diagnosed, the more likely it will be successfully treated. Unfortunately, it is all too easy for us all to fail to recognize early warning signs and symptoms of what could be the start of a very serious illness. How often do we just hope that the problem will go away on its own, or believe that we just do not have the time to bother the already-overworked doctor? That feeling of fatigue that doesn't seem to go away - have you been over-exerting yourself recently, or could it be an advanced warning of an impending heart attack? Your colleague is acting strangely. Maybe he is just having a bad day, or could he be abusing alcohol or drugs? Your friend is staring vacantly into space. Is she just lost in her thoughts, or having an epileptic seizure? This publication lays out in simple terms the symptoms, and where possible, the early warning signs of common medical conditions. It does this with the intention of giving readers the opportunity to recognize possible medical conditions in themselves and others and make an informed decision concerning seeking medical assistance in having these conditions properly diagnosed.