Nicotine improves ADHD symptoms and appears to have effects in the brain that are similar to those of stimulants. Although such findings should certainly not encourage anyone to smoke, some studies are focusing on benefits of nicotine therapy in adults with ADHD.
However, when the metabolites of nicotine were isolated and their effect on first the [...]

 
Nicotine has very powerful effects on arteries throughout the body. Nicotine is a stimulant, it raises blood pressure, and is a vasoconstrictor, making it harder for the heart to pump through the constricted arteries. It causes the body to release its stores of fat and cholesterol into the blood. It has been speculated that nicotine [...]

 
The common effect of cannabis is relaxation or drowsiness. It can also induce a feeling of nervousness or even paranoia. Some people confess that after they use cannabis they feel hungry. Also cannabis may affect the short-term memory and coordination. Usually cannabis induces a state of intoxicated relaxation, euphoria and dreaminess.
Cannabis it is very quick [...]

Methadone is one of the most controversial drugs on the market. There are a lot of questions to answer on how effective this treatment is.