The most common signs and symptoms are nausea, stomach cramps, diarrhea, fever, chills, and vomiting. A person with food poisoning may have any combination of these symptoms depending on the cause or the agent involved. The illness may begin from one to 72 hours after eating the food.
The existence of electromagnetic fields around every object in the world - known as an Aura - is a scientifically proven fact. The Chinese refer to this energy as 'Chi' (pronounced Chee), the vital life force energy of the Universe, present within every living thing.
The mean of a Chi Square distribution is its degrees of freedom. Chi Square distributions are positively skewed, with the degree of skew decreasing with increasing degrees of freedom. As the degrees of freedom increases, the Chi Square distribution approaches a normal distribution. Figure 1 shows density functions for three Chi Square distributions.