Answer;
Smoking
Smoking transfers substances to the brain faster than when a drug is injected or swallow
Explanation;
-Nicotine from cigarettes is absorbed through the skin and mucosal lining of the nose and mouth or in the lungs (through inhalation).Nicotine can reach peak levels in the bloodstream and brain rapidly, depending on how it is taken. Cigarette smoking results in nicotine reaching the brain within just 10 seconds of inhalation.