Neurotransmitters are special brain chemicals that carry messages to be communicated throughout our bodies. They depend on their signals on neurons, which are specialized cells that transmit and receive messages in the form of electrical impulses. The brain uses neurotransmitters to tell muscles to move, the heart to beat, and more. The brain is a soft, wrinkled tissue that has a mass of about 1.4 kg. They play an important role in our body and can affect our sleep, mood and can cause problems if they are not balanced. Between neurons there are small spaces called synapses through which messages can pass, but without electrical impulses. When an impulse reaches a synapse, neurotransmitters are released and move across the gap to the other side to restart the electrical impulse. Then, the neurotransmitter is broken down to allow new messages to be received. Drugs can limit the work of neurotransmitters. For example, a drug can hinder the activity of your neurons in the same way that a burglar will break into your house and destroy your belongings. More specifically, drugs can stop the chemical reactions that produce neurotransmitters. Drugs can destroy your intellectual property by obstructing nerve impulses and preventing neurotransmitters from moving to where they are needed. It can also sometimes affect the amount of neurotransmitters as it can produce too much or too little neurotransmitters. One type of ruthless drug is called heroin which can profoundly affect the behavior of a human being. Heroin is an illegal but highly addictive drug that is made from morphine, a naturally occurring substance that can be extracted from the pod of poppy plants. Inhibits the central nervous system. The effects of heroin addicts are obviously b...... half of the paper ......n alkalize it. One of the most effective ways to limit caffeine addiction is to adopt a healthy lifestyle. To do this we can start doing physical activity such as going for a run or jogging in the middle of the day: it will refresh the body, stimulate our circulation and give us a healthy dose of fresh air that will keep us awake. We can also regulate a correct sleep cycle and always keep ourselves hydrated. Another option to stop consuming caffeine-containing products can be to support groups and rehab centers to seek help and deal with the side effects of addiction by surrounding them with a healthy environment. By doing these things to get rid of caffeine addiction, there are no disadvantages because there are no drugs involved as it is simply cured naturally like eating and living healthy. There are no negative side effects from consuming fruits or vegetables and exercising.