What is T.H.C.?

DURATION
Duration is strongly affected by dose, tolerance, and individual reaction. Those who use cannabis regularly experience a shorter duration than those who do not. Note that most cannabis smokers smoke multiple times in a single session which extends the duration.
Further, for oral consumption, duration is complicated by stomach contents and delivery mechanism. Taking THC-capsules on an empty stomach lasts much shorter than eating THC-containing cookies or food, which take hours to fully digest.
There has been some research into the pharmacokinetics of THC (how it moves through and is processed by the body). See Grotenhermen's research , which showed that the peak THC concentration after smoking was between 15-30 minutes and sloped down for 1-2 hours. He also showed that oral consumption caused the THC levels to peak between 2 and 4 hours and lasted for 4 to 8 hours.

EFFECTS
The effects of smoking Cannabis are usually lighter than those of many other recreational psychoactive substances.
People are generally capable of carrying out normal actions and activities while high.

  

POSITIVE
* mood lift, euphoria
* laughter
* relaxation, stress reduction
* creative, philosophical or deep thinking: ideas flow more easily
* increased appreciation of music. More aware of, deeper connection to music
* increased awareness of senses. (eating, drinking, smell)
* change in experience of muscle fatigue, pleasant body feel, increase in body/mind connection
* pain relief (headaches, cramps)
* reduced nausea, increased appetite (used medically for this)
* boring tasks or entertainment can become more interesting or funny

NEUTRAL
* general change in consciousness (as with many psychoactives)
* increased appetite, snacky-ness
* slowness (slow driving, talking)
* change in vision such as sharpened colors or lights
* closed-eye visuals (somewhat uncommon)
* tiredness, sleepiness, lethargy
* stimulation, inability to sleep (less common)
* blood shot eyes (more common with certain varieties of cannabis and inexperienced users)
* mouth dryness, sticky-mouth (varies with strain)
* interrupts linear memory, difficulty following a train of thought.
* cheek, jaw, facial tension/numbness (less commonly reported)
* racing thoughts (especially at high doses)
* increased emotional impact of music
* time sense altered: cars seem like they are moving too fast, time dilation and compression are common at higher doses

NEGATIVE
* nausea, especially in combination with alcohol, some pharmaceuticals, or other psychoactives
* coughing, asthma, upper respiratory problems
* difficulty with short-term memory during effects and during periods of frequent use (Ranganathan M, D'Souza DC, Psychopharmacology, 2006)
* racing heart, agitation, feeling tense
* mild to severe anxiety
* panic attacks in sensitive users or with very high doses (oral use increases risk of getting too much)
* headaches
* dizziness, confusion
* lightheadedness or fainting (in cases of lowered blood pressure)
* paranoid & anxious thoughts more frequent
* possible psychological dependence on cannabis
* clumsiness, loss of coordination at high doses
* can precipitate or exacerbate latent or existing mental disorders

WITHDRAWAL SYMPTOMS
* mild to moderate, non life-threatening withdrawal symptoms occur after daily use in some users, these may last for 1-6 weeks after ceasation of use and can include anxiety, anhedonia (reduced experience of pleasure), headaches, general unease/discomfort, difficulty sleeping, and a desire to smoke pot, severity of symptoms is related to frequency of use and individual sensitivity
* slight loss of appetite
* finding non-stoned life a bit dull, increased boredom

DESCRIPTION
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, sense of time is altered, attention span and memory are frequently affected, and thought processes and mental perception may be significantly altered.

One of the most common comments about cannabis effects is that it enhances the appreciation of sensory experiences without substantially changing the perceptual experience. Many people attribute their love of music, appreciation for new forms of music, and ability to play instruments to the use of cannabis.

At overly high doses, the effects are often likened to other psychedelics and panic and dysphoria (bad mood) are common. High doses, especially when taken orally, can sometimes result in difficult experiences and trips to the emergency room in response to racing heart, extreme confusion, short-term memory loss, and panic. After high dose experiences, especially among those who are not regular users, after effects can last 1-2 days.

Paradoxically, although cannabis is normally considered a relaxant/depressant, it's effects are stimulating in a substantial portion of those who use it. While some people us it to help them sleep, others cannot sleep for 3-6 hours after their last smoke.