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

POSITIVE
• cannabis is non-toxic and therefore has no risk of overdose (unlike coffee/cigarettes or alcohol, for example)
• mood lift
• increased alertness/ability to focus or steer one's consciousness any so desired direction
• relaxation to combat stress and insomnia
• increased neurological control over muscles, making it easier to relax and at the same time easier to contract (better sports, sex etc.)
• 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) dulling of pain
• reduced nausea, increased appetite (used medically for this) but healthy people can thus also tolerate more liquor in the stomach
• opening of the bronchia and alveoli in the lungs, decongesting the airways and allowing more oxygen to flow to the blood and CO2 to leave the body
• cannabis/cannabinoids thus inhaled are in fact also antioxidants which have a beneficial and anti-cancer effect on our tissues and slows the aging process
• above actions result in a boost of the immune system overall and is beneficial to anyone sick or healthy
• helps heal nerve damage
• protects brain cells from chemical agents
• enables our cerebra to recover faster from strokes, concussions (and hangovers) headaches or migraines i.e. correct chemical imbalances see cannabis is medicine for Alzheimer, Parkinson epilepsy and seizure patients
• last but not least cannabis/cannabinoids destroy cancers/leukemia/lymph node cancers and certainly also prevents the user from developing most type of cancers
• decreased intra-ocular pressure in the eye (red-eye) allowing greater fluid exchange and hereby oxygenating and nourishing ocular tissue and nerves

NEUTRAL

• general change in consciousness (as with many psychoactive)
• increased appetite, snacky-ness
• slowness (slow driving, talking)
• or hyper activity (such as playing basketball or skiing)
• tiredness
• 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)

  NEGATIVE

• possible nausea, especially in combination with alcohol, some pharmaceuticals, or other psycho-actives
• coughing, asthma, upper respiratory problems
• difficulty with short term memory during effects and during periods of frequent use
• 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
• 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
   
• no physical withdrawal symptoms occur (unlike, for example; with coffee, alcohol, cigarettes, toxic substances with a significant addiction potential let alone oxycontin or morphine, etc.)
• mild non life-threatening withdrawal symptoms occur after daily use in some users. These may last for 1-2 weeks after cessation 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, missing "getting high" the condition of cerebral  and bodily euphoria

No wonder cannabis or marijuana have been called the aspirin of the 21st century in medical journals. In consideration of the above and other psychoactive substances being legal which are infinitely more addictive and harmful (coffee, alcohol and cigarettes, for example) current policies chastising marijuana are out of date and sick and dying people are being denied proper treatment and cure. This is needlessly cruel for the sick and costly for society as a whole. This situation is exacerbated by the fact that most politicians are blissfully unaware of the current state of science with regards to Medical Marijuana. Furthermore, science seems to support the fact that it is better to use cannabis than not, because it is actually beneficial to one's health or the pursuit of one's happiness. With this we recommend eating or vaporizing cannabis as opposed to smoking which has deleterious health effects associated with this form of administration.