Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Consequences of unhealthy eating habits essay
Consequences of unhealthy eating habits essay
Consequences of unhealthy eating habits essay
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Consequences of unhealthy eating habits essay
Neurotransmitters are special brain chemicals that carry messages to communicate through our whole body. They depend their signals on neurons, which are specialized cells that transmit and receive message in a form of electrical impulses. The brain uses neurotransmitters to tell out muscles to move, our heart to beat and more. The brain is a soft wrinkly tissue which has a mass of about 1.4 kg. They play an important part in out body and can affect our sleep, mood and can cause problems if they are not balanced.
Between neurons are small gaps called as synapses which messages can go through, but without electrical impulses. When an impulse reaches a synapse, neurotransmitters are released and move across the gap to the other side for starting the electrical impulse all over again. Then, the neurotransmitter is broken down for new messages to be received.
Drugs can restrict the job of neurotransmitters. For example, a drug can obstruct your neuron activity the same way that a robber will break in to your house and destroy your things. More precisely, drugs can stop the chemical reactions that produces neurotransmitters. Drugs can destroy your intellectual property by obstructing the nerve impulses and prevent neurotransmitters from moving to where they are needed. Sometimes it can also affect the amount of neurotransmitters as it may produce either too less or too much neurotransmitters.
One type of ruthless drug is called as heroin which can deeply affect a human’s behavior. Heroin is an illegal but highly addictive drug that is processed from morphine, a substance which occurs naturally and can be taken out from the seed pod of poppy plants. It inhibits the central nervous system. The effects of heroin addicts are of course b...
... middle of paper ...
...n alkalize it. One of the most effective way to limit caffeine addiction is to adopt a healthy lifestyle. To do this we can start exercising like going for a run or jogging during the mid day will freshen out body up, stimulate our circulation and give us a healthy dose of fresh air which will keep ourselves awake. We can also regulate a proper sleeping cycle and keep ourselves hydrated at all times. Another option to quit caffeinated products can be by going to support groups and rehab centers to seek help and cope with side effects for the addiction by surrounding them with a healthy environment.
By doing these things to get rid of the caffeine addiction, there are no disadvantages because there are no medicines involved as it is just cured naturally like eating and living healthy. There are no bad side effects from eating fruits or vegetables and from exercising.
Briefly explain the process of neurotransmission. Neurotransmission starts with the neuron, the most important part of the central nervous system. A neuron contains a cell body, axon, and dendrites. When a neuron receives an electrical impulse, the impulse travels away from the cell body down the axon. The axon breaks off into axon terminals. At the axon terminals, the electrical impulse creates a neurotransmitter. The neurotransmitter is released into the synapse, a space between two neurons. If the neurotransmitter tries to stimulate a response of another neuron, it is an excitatory neurotransmitter. If the neurotransmitter does not stimulate a response of another neuron it is an inhibitory neurotransmitter. If a response is generated, the second neuron or postsynaptic neuron will receive an action potential at the site of the dendrite and the communication process will continue on. If a response is not generated, neurotransmitters left in the synapse will be absorbed by the first neuron or presynaptic neuron, a process known as reuptake. Neurotransmitters control our body functions, emotions, and
to the brain because it is the control center of the cell. It too sends and
Neurons dispatch signals to other cells through thin fibers called axons, that cause chemicals acknowledged as neurotransmitters to be released at junctions identified as synapses. A synapse gives a command to the cell and the entire communication process typically takes only a fraction of a millisecond.
The central nervous system is a collection of cells within the brain specialized to send specific signals throughout the body in order to relay the messages necessary for proper functioning. The way these cells, also called neurons, communicate with one another is through the process of releasing neurotransmitters. A balanced proportion of neurotransmitters are crucial for a healthy functioning mind. In situations where the neurotransmitters get out of sync by becoming too prevalent or sparse within the synaptic clefts, a wide spectrum of mental illness can be the result.
Caffeine is a mild stimulant that occurs naturally in at least 63 plant species. Caffeine can be found in the leaves, stems, seeds, and roots of these various plants. Caffeine is part of the methylxanthine family. It consists of a xanthine molecule with three methyl groups attached to it. Caffeine can be found in many products like sodas, tea, and coffee, but it also occurs in several other products such as prescription medications, diuretics, and pain relievers. Caffeine’s widespread use and popularity have caused many people to view the substance as an addictive drug. Thus making caffeine the most inexpensive and readily available drug known to man. Then on the other hand there are people who view caffeine as a helpful stimulant that increases the individual’s concentration and awareness as well as many other physical traits. The important thing to remember is that caffeine’s affects vary based on the person, the amount ingested, the frequency of consumption, and individual metabolism. (http://www.pp.okstate.edu/ehs/kopykit/caffeine.html)
Neurotransmitters are chemicals made by neurons and used by them to transmit signals to the other neurons or non-neuronal cells (e.g., skeletal muscle; myocardium, pineal glandular cells) that they innervate. The neurotransmitters produce their effects by being released into synapses when their neuron of origin fires (i.e., becomes depolarized) and then attaching to receptors in the membrane of the post-synaptic cells. This causes changes in the fluxes of particular ions across that membrane, making cells more likely to become depolarized, if the neurotransmitter happens to be excitatory, or less likely if it is inhibitory.
The physical and chemical properties make heroin a desirable drug. It is highly addictive and fast acting, which lure users in. The first time one uses the drug it is said to cause disagreeable feelings and nausea. But following further use it causes a sudden rush in your brain, lasting 1 to 2 minutes, that feels as if it is relieving all the tension one has, followed by a calm and relaxed state that can last a few hours (“Heroin in the Brain”, n.d.). These feelings of satisfaction and ease make this drug ...
Once the signal is sent, the ion balances out and becomes at rest. The electrical impulse that runs down the axon releases a chemical called acetylcholine, only one of many chemicals that transmits signals across the synapse. These substances are called neurotransmitters because they transmit data from one ...
Chemical messengers transmit information from nerve cells to nerve cells in the body and the brain. Your nerve cells are called neurons, and their chemical messengers are called neurotransmitters. Chemicals like hallucinogens can disrupt this communication system, and the results are changes in the way you sense the world around you. There's still a lot that scientists don't know about the effects of hallucinogens on the brain, though. Some hallucinogens occur naturally in trees, vines, seeds, fungi and leaves.
Action potential is what allows for nerve impulses. The process of action potential begins when there is a difference in concentration of ions outside and inside of the neuron. Before this process begins, the neurons are in a state called resting potential. In this state, neurons are negativelty charged at -70 mv. If an electrical stimulus is applied, sodium dependent gates open and positive sodium ions to rush in. Now the neuron is positively charged. The added sodium creates what is known as a 'spi...
...ical impulse, repeating the mechanism described above. The neurons received signal, they crumble up the information passed it down until they get to the last one.
Synaptic transmission is the process of the communication of neurons. Communication between neurons and communication between neuron and muscle occurs at specialized junction called synapses. The most common type of synapse is the chemical synapse. Synaptic transmission begins when the nerve impulse or action potential reaches the presynaptic axon terminal. The action potential causes depolarization of the presynaptic membrane and it will initiates the sequence of events leading to release the neurotransmitter and then, the neurotransmitter attach to the receptor at the postsynaptic membrane and it will lead to the activate of the postsynaptic membrane and continue to send the impulse to other neuron or sending the signal to the muscle for contraction (Breedlove, Watson, & Rosenzweig, 2012; Barnes, 2013). Synaptic vesicles exist in different type, either tethered to the cytoskeleton in a reserve pool, or free in the cytoplasm (Purves, et al., 2001). Some of the free vesicles make their way to the plasma membrane and dock, as a series of priming reactions prepares the vesicular ...
Coffee is the first thing that people associate with instant energy on a groggy morning. “In the U.S., coffee is king of beverages” (Reinke) Research has been done that has named coffee as an addiction to the people who consume large quantities of it. Coffee was named the top source of antioxidants. This is partly because of the amount consumed each day. Some of the antioxidants that coffee has are quinines and chlorogenic acid. It also contains trigonelline, an antibacterial compound. This is where coffee acquires its delicious aroma. Now let’s step back for a minute and just think about how much caffeine people consume. In an 8oz cup of coffee it has about 85 milligrams of caffeine. This is about double the amount that tea contains. Studies have shown that caffeine stimulates the brain and nervous system. This is where you get that energized feeling. After about the third cup, knees start to bounce, pens are clicking and people start running laps around the office. Caffeine can become addicting if you drink too much. Coffee can become that addictive habit people are unable to shake.
The Journal of Neuroscience Dobler-Mikola, A. Gschwed, P. Gutzwiller, F. Steffen, T. Rehm, J. Uch engagen, A. Feasibility, Safety, and Efficacy of Injectable Heroin Prescription for Refractory Opioid Addicts: a follow-up study. The Lancet, volume 358, pg. 1417-1420. Everitt, B. Robbins, T. (1999) Drug addiction: bad habits add up. Macmillian Magazines, volume 389, pg.
The use of drugs is a controversial topic in society today. In general, addicts show a direct link between taking drugs and suffering from their effects. People abuse drugs for a wide variety of reasons. In most cases, the use of drugs will serve a type of purpose or will give some kind of reward. These reasons for use will differ with different kinds of drugs. Various reasons for using the substance can be pain relief, depression, anxiety and weariness, acceptance into a peer group, religion, and much more. Although reasons for using may vary for each individual, it is known by all that consequences of the abuse do exist. It is only further down the line when the effects of using can be seen.