Complex sentence: In fact the factors that usually facilitate fainting, such as tiredness, lack of fluids and food, and a hot and humid environment, as well as natural hypotension, are just as important as the amount of cannabis involved.
Split into simpler sentences: In fact the factors that usually facilitate fainting are tiredness, lack of fluids, and food, a hot and humid environment, as well as natural hypotension. They are just as important as the amount of cannabis involved.