What effects will smoking marijuana have on me?

Marijuana users may experience many problems: headaches, dizziness; disturbances with short-term memory and learning, reduced ability to solve problems, weight gain and anxiety or panic attacks.  

This drug reduces motivation and accomplishment.  Often users are aimless with no motivation to retain employment or complete educational opportunities.  They remain virtually stagnant, no growth, no change.  

Medical problems associated with heavy marijuana use include cancer, respiratory disorders, reproductive problems and immune-system deficiencies.  Many of the cancer causing chemicals found in cigarettes are also present in marijuana.