Wrist, Hand & Finger Pain Causes. If you have pain the hand, understand potential causes of hand or wrist pain including arthritis, injury or other conditions. Read More >>. If you have wrist and hand pain, learn what steps your doctor may take to provide you with a diagnosis of arthritis or other condition.
Marijuana also affects brain development. When people begin using marijuana as teenagers, the drug may reduce thinking, memory, and learning functions and affect how the brain builds connections between the areas necessary for these functions.
Starting Age of Marijuana Use May Have Long-Term Effects on Brain Development. Feb. 10, 2016 â The age at which an adolescent begins using marijuana may affect typical brain development, according to researchers. Scientists describe how marijuana use, and the age at which use is initiated, may ...