Caffeine overuse is harmful to human health.

Caffeine (Caffeine) is an alkaloid extracted from tea and coffee fruit. Moderate use of caffeine can dispel fatigue and excitatory nerves. Caffeine is used in clinical treatment of neurasthenia and coma resuscitation. However, large doses or long-term use will also cause damage to the human body, especially it is addictive, once discontinued, there will be mental fatigue, fatigue and other withdrawal symptoms, although its addiction is weak, abstinence symptoms are not very serious. However, when the drug dosage is increasing due to drug tolerance, caffeine can not only act on the cerebral cortex, but also directly stimulate the medulla oblongata, cause paroxysmal convulsions and bone tremors, and damage important internal organs such as liver, stomach and kidney. cause respiratory tract inflammation, women's breast adenoma and other diseases, and even lead to mental retardation and limb deformities of the next generation of users. Therefore, it is also included in the scope of psychotropic substances under state control.

Caffeine abuse usually has two forms of smoking and injection, and its excitatory stimulation, side effects, symptoms and drug dependence are similar to those of amphetamine.

The country has cracked a number of cases in which drug traffickers at home and abroad colluded to smuggle caffeine out of the "Golden Triangle" area. At present, the legal production of caffeine in China is greater than the legal demand, and the situation of illegal channels is more serious.