Short-term memory loss goes hand in hand with marijuana’s effect on the brain. Judgment and reaction time can become impaired, learning and retaining information can be affected, as well as a host of physical ailments also appears. Even though marijuana is extremely common and legal in many places, it does still contain negative side effects. Marijuana’s effects on the brain can also concern an embryo. Women’s who uses marijuana can cause damage to their unborn child. Truth is, there is no such thing as a completely safe drug, and marijuana is no exception. If you require rehab from marijuana addiction then Clarksville recovery programs are the best and the most effective ones.