Showing posts with label Really. Show all posts
Showing posts with label Really. Show all posts

Monday, August 12, 2013

Does Smoking Really Relieve Stress?

Did You Know?
Studies have reported that lighting up a cigarette causes long-term stress levels to increase, rather than decrease. For regular smokers, the stress levels are alleviated only in the interval between two cigarettes.
Does smoking really relieve stress? In times of stress and pressure, will smoking a cigarette help you stay calm? Smokers will answer this question in the affirmative, as they feel that smoking alleviates stress, anxiety, and other negative emotions. Smokers say they experience a 'high' after smoking, and an amazing sense of calmness and satisfaction takes over. It feels as if you are on cloud nine, and the stressors no longer affect you. This feeling of tranquility is what draws people to smoking. I am sure many of you will agree with this. Yes, stress symptoms are kept at bay after smoking a cigarette. However, it is just a momentary effect of nicotine on the body.
? Nicotine in cigarettes reaches your brain in less than 10 seconds. The stress-relieving effect after smoking a cigarette is because of the release of dopamine in the brain. Dopamine is a pleasure chemical in the human body that soothes your nerves and helps you relax. It gives you a high and produces many positive effects on the body that improves your mood, enhances your concentration, and relaxes your muscles.

? You breathe in and out when you smoke. This is an effective way of relaxing the body. Taking a deep breath helps in inhalation of more oxygen, which helps you relax and calm down.

? You tend to go out for a smoke, which gives you a break from your mundane tasks and helps you relieve stress.

? So yes, if you consider the immediate effects of smoking on the body, they help you relax and rejuvenate. Smokers continue smoking to experience the pleasurable effects which they think help relieve stress and calm them.


According to scientists at the University of East London, the calming effect of cigarettes is just a psychological addiction. Nicotine withdrawal symptoms are inhibited by regular smoking. They create a psychological link between cigarette and stress relief.

? Nicotine changes the brain chemistry by affecting the neurotransmitters. This changes the way in which brain cells work. Once a smoker stops using nicotine, the changes last for a while, after which it returns to the normal state. So, once the nicotine effects wear off, your mood worsens, and you need another puff of smoke to restore the levels of nicotine and your mood per se.

? Thus, instead of decreasing stress, you constantly keep on pumping nicotine in your blood, which has hazardous effects on your overall health and well-being.

? A cigarette contains many other hazardous chemicals, which include toxins and potential carcinogens that have disastrous effects on the body.

? Nicotine is one of the most addictive substances known to man, and when combined with carbon monoxide in cigarettes, it increases your heart rate and blood pressure. It puts a strain on the heart and blood vessels, increasing the risk of heart diseases and strokes. This deadly duo reduces the oxygen levels in the body of smokers. They prevent flow of oxygen to the brain, which impairs your ability to concentrate and focus.

? Nicotine constricts the blood vessels, forcing your heart to work harder to circulate blood to all parts of the body. The heart rate and blood pressure of a smoker are always on the higher side than that of a non-smoker. These effects on the heart and blood vessels put a smoker at a greater risk of heart attacks and cerebrovascular diseases.

? Smoking stains the teeth, increases bad breath, lowers immunity, and produces wrinkles on the skin. The risk of developing neurological disorders and spinal problems is high in smokers.

? Smoking affects the bones and joints in the body, making smokers more susceptible to osteoporosis and other bone-related maladies.

? The most important negative impact which smoking has is mentioned on the cigarette packet itself?Smoking Kills. It is known to be the main cause of cancer to various parts of the human body that include the mouth, throat, larynx, esophagus, bladder, stomach, pancreas, liver, kidney, and of course, the lungs. It does extensive damage to the lungs, causing chronic bronchitis and emphysema which impairs the airways in the lungs.

? Smoking affects fertility in both the sexes and may cause impotence in men. It increases the risk of complications during pregnancy, like miscarriage, stillbirth, or premature birth.


Considering the harmful effects of smoking, the overall health of a smoker is far from good. In fact, smoking puts him at a higher risk to all the above-mentioned conditions and diseases. So, what good does smoking do to relieve stress? In reality, a long-term increase in the stress levels is what smoking does to the body. Smoking hides your problems by giving you temporary relief. In essence, it's a placebo effect. This is what researchers from the Oxford and Cambridge Universities and Kings College London had to say: "The belief that smoking is stress relieving is pervasive, but almost certainly wrong. ... The reverse is true: smoking is probably anxiogenic [causes anxiety] and smokers deserve to know this and understand how their own experience may be misleading."

These researchers followed 491 subjects as a part of their study. In the initial stages, it was found that 21.6% smokers had mood or anxiety disorders. Six months later, 24% subjects managed to quit smoking, and with that, they even experienced a drop in anxiety levels. They further said, "Stopping smoking probably reduces anxiety and the effect is probably larger in those who have a psychiatric disorder and who smoke to cope with stress."


Another research study suggested that smokers who quit smoking experienced a reduction in their stress levels. These people found new techniques, like reading, exercise, meditation, deep breathing etc., to cope with stress. They are far happier and stress-free now.

Smoking your problems away will only make them worse. Instead, stay away from this addiction, and your problems of stress, anxiety, and depression will be kept at bay.


View the original article here

Saturday, June 15, 2013

Does the 5:2 Diet Really Work?

The person behind popularizing the 5:2 diet plan, Dr. Michael Mosley, is a medical journalist and an ardent follower of this diet. He claims to have lost nearly 20 pounds in a week after starting off with this diet.

The diet gained immense popularity after the documentary Eat, Fast & Live Longer featured on the BBC 2 television program Horizon. Along with writer Mimi Spencer, Mosley has provided a detailed overview of the diet plan and the science behind it in the book The Fast Diet: Lose Weight, Stay Healthy and Live Longer. In his book he explains how the diet works, the science behind it and the foods for the diet. He has drawn a lot of his theories from research on fasting by Dr Krista Varady in the United States and Dr Michelle Harvie in Britain. Before understanding whether the 5:2 works or not, it is important to take into account the science behind the diet.

Understanding the science behind intermittent fasting is the key to understanding how this diet really works. When we fast, the body derives energy from the glucose in the blood. Once the glucose in the blood is used up, the body takes it from the stored glucose also known as glycogen.

Once the glycogen reserves are used up by the body, the energy and glucose needed for everyday functioning is taken from the fat reserves. While this may make fasting look very attractive, but when done everyday it can push the body into starvation mode where instead of losing weight, the decreased calorie intake impacts the metabolism and results in muscle loss.

Therefore the 5:2 diet does not encourage starvation or severe calorie restriction, where the calorie intake is too less to lead a normal-healthy life. Instead the diet encourages eating "fewer calories" only on certain days. Although 500 to 600 calories is not much, you can get it from fiber-rich fruits, vegetables, grains. While proteins can be obtained from sources like eggs and lean meat. Oats porridge with cinnamon and nutmeg or a quinoa salad are some tasty yet healthy food options for this diet.

The following diet plan as suggested in the book for a woman (500 calories) includes:

Breakfast: 142 calories Half a tub cottage cheese 100 gOne sliced pear 100 gOne fresh fig 55 gDinner: 341 calories
Sashimi made with 3-5 pieces salmon 100 g and tuna 100 g served with soy sauce, wasabi and ginger.1 tangerine (mandarin)Total for the day: 483 calories
? Growth of New Brain Cells
The science behind the 5:2 diet is based on the feast and famine diet of early humans where there were days when these people would go without food. Mosley believed that this fasting led to the growth of new brain cells in the hippocampus due to the increased levels of protein called brain-derived neurotrophic factor, or BDNF. The hippocampus is the region of the brain that is responsible for memory. The new cell growth in the brain is further associated with memory improvement.

? Better Insulin Utilization
Apart from memory improvement, fasting and the excess of BDNF helps in mood improvement. It also helps the body utilize insulin better, by increasing insulin's effectiveness in storing glucose. This increased insulin sensitivity in turn reduces the risk of obesity, blood pressure, heart diseases and diabetes.

? Protection Against Cancer Cells
Fasting has also shown promise when it comes to fighting cancer. When the body has less food, normal cells go into a survival mode. Unlike cancer cells which keep multiplying rapidly, these healthy cells are forced into hibernation. This protects the cells from the cancer-causing cells, thus restricting the spread of cancer.


? Hard to Follow
Not everyone can follow this diet, and one of the many criticisms is that it is very hard-to-follow. 600 or 500 calories is not much and it can leave you very hungry and grumpy for the two days that you need to fast.

? Limited Evidence of Effectiveness
Hunger pangs are often accompanied by irritability, sleep problems, anxiety and dehydration. Moreover, there is insufficient scientific research on human subjects that can attest the actual weight loss with this diet. Critics of the diet say that intermittent fasting may give the digestive system a rest but there is no significant weight loss.

? Slows Metabolism
Nutrition experts believe that when the calorie intake is reduced on fasting days the internal body alarm is set off and it slows down the metabolism. Moreover, most people tend to overeat on the days that one is allowed to eat. Instead of cutting down the calories for two days, it is therefore advisable to reduce the daily calorie consumption to match the basal metabolic rate.


View the original article here