THC + Bob Marley

Tetrahydro-6,6,9-trimethyl-3-pentyl-6H-dibenzo[b,d]pyran-1-ol

Dose
The strength of cannabis varies greatly from one variety to another. Some, known as 'one-hit-shit', requires only a single lung-full to reach full effects while other varieties require many hits to achieve the same effects. Additionally, the amount that one individual likes to smoke can be many times what another prefers. Generally, 1/8 ounce (3.5 g) of mid-quality bud could get around 20-30 people reasonably high.

Law
Both sales and possession of cannabis are illegal in the United States and most countries, however many states have legalized the medical use of cannabis. Additionally, some states have decriminalized the possession of personal use quantities (under 1/2 - 1 ounce) choosing to punish this with a fine rather than jail time.

Chemistry
The active ingredients in cannabis are called cannabinoids. There are many cannabinoids synthesized by the plant including tetrahydrocannabinol, cannabinol, cannabidiol, cannabinolidic acid, cannabigerol, and cannabichromene. Delta-9-tetrahydrocannabinol is thought to be responsible for most of the psychoactive effects of cannabis and is the active ingredient in synthetic thc pills such as marinol.

Production
Cannabis plants do grow wild in many parts of the world, but the quality of wild specimens ('ditch-weed') is generally quite low. Most cannabis is cultivated intentionally and can be grown either indoors or out.

History
The cannabis plant has been used both medicinally and recreationally for thousands of years. It wasn't until the early 19th century that the use of cannabis spread from China and the Middle East to the population of Europe and then to America in the middle of the century. Cannabis was made illegal in the U.S. in 1937 and has continued to be a popular recreational substance since that time.

EFFECTS

Onset
When smoked, the effects of cannabis begin almost immediately. When eaten the effects can take 1 to 2 hours to manifest, based primarily on how much food is in the stomach.

Duration
The effects of smoked cannabis peak after about 20 minutes and last for 1-2 hours. When eaten, the effects will peak more slowly and primary effects may last for 3-4 hours.

The Experience
The primary effects sought by those using cannabis recreationally are euphoria, relaxation, and changes in perception. Effects vary depending on dosage, with effects at low doses including a sense of well-being, mild enhancement of senses (smell, taste, hearing), subtle changes in thought and expression, talkativeness, giggling, increased appreciation of music, increased appetite, and mild closed-eye visuals. At higher doses, visuals may become more prominent, sense of time is altered, attention span and memory are frequently affected, and thought processes and mental perception may be significantly altered.

Visuals
While most people do not experience a strong visual component to the cannabis experience, some do and some particular varieties of cannabis as well as higher doses are more likely to produce this effect.

PROBLEMS
Negative effects can include paranoia, dry mouth, respiratory problems and nervousness/racing heart. Other effects may be negative or inconvenient in certain settings or situations including reduced ability to concentrate, impaired memory, tiredness, and confusion. Side effects tend to increase with lifetime use: as users age, they often report the anxiety-producing and uncomfortable effects increase and the euphoria decreases.

Contraindications:
Avoid Driving - While there has been little formal study into the effects of cannabis on driving, it is generally a good idea to avoid driving while under the influence of any psychoactive or intoxicating substance. Several studies have shown that drivers who use alcohol and cannabis in combination are far less capable than when taking either substance alone. Some studies have shown that cannabis causes impairment in driving performance, but that users often are aware of the impairment and compensate by driving more carefully.

Addiction Potential:
Regular use of cannabis can lead to psychological habituation for some people making it difficult for them to quit. Studies have estimated that between 5 and 10% of those who try smoking cannabis will become daily users sometime during their life, but most of these smokers will have given up the habit by age 30 and few remain daily smokers after age 40. Most people do not experience signs of physical addiction, but with regular daily use use, mild to medium withdrawal symptoms usually occur for less than a week, but can extend for as long as 6 weeks.

Long Term Health Problems:
The most common negative health impact of regular cannabis smoking are lung and throat problems including: coughing, increased frequency of throat and lung infections, and reduced lung capacity. There are concerns about possible long term carcinogenic (cancer causing) effects of cannabis smoking, but the results are still somewhat controversial. It can be safely said, however, that health risks increase with frequency and duration of smoking anything.

Poisoning:
There are no confirmed, published deaths from cannabis-only poisoning. There are a small number of people who report serious cannabis allergies which cause unexpectedly intense reactions, throat & lung irritation, etc.

Heart Issues:
Because cannabis increases heart rate, it could potentially increase risks of heart problems in those at risk of heart disease. One study found that cannabis use increased the risk of heart attack in men over 40, but its findings were weak and based on a very small number of individuals. In a large study of 65,000 individuals in California by Sidney et al in 1997, cannabis was not found to increase mortality rates among users under 50.

Mental Illness:
Several studies have indicated that cannabis use (like many other strong psychoactives) can precipitate neuroses or psychoses in those who are already at risk. Studies have also shown that cannabis use does not appear to increase the risk of psychosis in otherwise healthy individuals.