This is from the drug section of my Driver Improvement i was forced to take
MARIJUANA

WHAT IS IT?
The first drug that will be discussed is marijuana. Marijuana, often times referred to as grass, pot or weed, is the unprocessed, dried leaves, stems and seeds of the cannabis sativa and the cannabis indica plants. Hashish, a more potent product, is processed from the resin in the flowers of the marijuana plant.

Like marijuana, it may be smoked or eaten. In its most frequently used form, the dried leaves are shredded and rolled with cigarette papers into a "joint". Hashish is usually smoked in a pipe.

Marijuana contains hundreds of chemicals, which affect the mind and body. Among the chemicals causing the high, THC is the main ingredient. The amount of THC and other chemicals varies greatly in different marijuana plants, and from "joint to joint".

Marijuana purchased on the street may contain other drugs such as PCP or contaminants such as herbicides, bacteria, or fungus, which can be extremely dangerous.



EFFECTS OF MARIJUANA


Low-dosage marijuana use minimally affects motor coordination. Higher dosages reduce the ability to react to unusual or emergency situations.

When alcohol and marijuana are mixed, it is definitely more hazardous than using either substance alone because synergistic results are unpredictable. Marijuana may influence your ability to think or drive for several hours after the "high" feeling has passed - even though you're not aware of it.
has anyone hear ever gotten tainted weed without knowing it? And it has have really had something on it, not that it was just surprisingly strong, or it tasted weird, but something legitimate. this is some of the most straight forward thinking about the effect of MJ though near the bottom