Smart phone allow users to store information, e-mail, and install programs, along with using a mobile phone in one device. Smart phone lines have worked to enhance the clarity and integrity of the basic audio signal of the phones.
Smart phone are also a handheld device that integrates mobile phone capabilities with the more common features of a handheld computer or PDA. This helps to ensure that even with the addition of all the extra features, it is still possible to use the smart phone to make a simple telephone call and expect the sound quality to be crisp and clear. Smartphone these days also come with Global Positioning System (GPS) tracking software that allows you to use mapping applications. Besides reading email, smart phone have evolved to be able to read business documents Cameras on smart phone usually come with high megapixels and flash backlights in a variety of formats such as PDF. With smart phone we can make a high quality video conference to discuss about work or anything else. 3G will improve our communication with each other.
It can improve human’s communication especially in transferring data and to access data in a short period of time anywhere as there is coverage.
Tuesday, October 7, 2008
Benefit Of Smart Phone
Smoking - effects on your body
Nicotine is the addictive drug in tobacco smoke that causes smokers to continue to smoke. Addicted smokers need enough nicotine over a day to ‘feel normal’ – to satisfy cravings or control their mood. How much nicotine a smoker needs determines how much smoke they are likely to inhale, no matter what type of cigarette they smoke.
Along with nicotine, smokers also inhale about 4,000 other chemicals in cigarette smoke. Many of these compounds are chemically active and trigger profound and damaging changes in the body. There are over 60 known cancer-causing chemicals in tobacco smoke. Smoking harms nearly every organ in the body, causing many diseases and reducing health in general.
Tobacco smoke contains dangerous chemicals
The most damaging compounds in tobacco smoke include:
Tar – this is the collective term for all the various particles suspended in tobacco smoke. The particles contain chemicals including several cancer-causing substances. Tar is sticky and brown and stains teeth, fingernails and lung tissue. Tar contains the carcinogen benzo(a)pyrene that is known to trigger tumour development (cancer).
Carbon monoxide – this odourless gas is fatal in large doses because it takes the place of oxygen in the blood. Each red blood cell contains a protein called haemoglobin; oxygen molecules are transported around the body by binding to, or hanging onto, this protein. However, carbon monoxide binds to haemoglobin better than oxygen. This means that less oxygen reaches the brain, heart, muscles and other organs.
Hydrogen cyanide – the lungs contain tiny hairs (cilia) that help to clean the lungs by moving foreign substances out. Hydrogen cyanide stops this lung clearance system from working properly, which means the poisonous chemicals in tobacco smoke can build up inside the lungs. Other chemicals in smoke that damage the lungs include hydrocarbons, nitrous oxides, organic acids, phenols and oxidising agents.
Free radicals – these highly reactive chemicals can damage the heart muscles and blood vessels. They react with cholesterol, leading to the build-up of fatty material on artery walls. Their actions lead to heart disease, stroke and blood vessel disease.
Metals – tobacco smoke contains dangerous metals including arsenic, cadmium and lead. Several of these metals are carcinogenic.
Radioactive compounds – tobacco smoke contains radioactive compounds, which are known to be carcinogenic
Smoking - Heart Circulation
Among people over 65, smokers have four to eight times the risk of an aneurysm than the average person’s risk: those with high blood pressure have double the risk
Smoking and exposure to secondhand smoke both significantly hasten hardening of the arteries, and the damage may be permanent, says a study at Wake Forest University.
Smoking may account for a 50% increase in the development of arteriosclerosis (the buildup of plaque along arterial walls) for current smokers, and 25% for past smokers. In the winter, smokers may be at an increased risk of heart disease due to higher blood pressure and heart rate, say researchers in Israel. Although winter blood pressure readings are typically higher for most people, in smokers the average increase in systolic blood pressure was twice the increase in non-smokers
Smoking damages the arteries to the heart and brain, thereby increasing the risk of heart attack and stroke
Cigarette smoking harms the body by raising cholesterol levels and blood pressure. One cigarette can impair circulation for up to 45 minutes by constricting the small blood vessels.
Reduce Smoking, Boost Heart Health
In the study, individuals who gradually quit smoking saw improvements in risk factors for heart disease, including lower cholesterol and carbon monoxide levels. The findings may encourage some of the millions of smokers worldwide to cut back on tobacco, which will cause an estimated 10 million deaths a year by 2030, report researchers led by Dr. Bjorn Eliasson from Sahlgrenska University Hospital in Goteborg, Sweden.
"Smoking reduction results in improvements in established cardiovascular risk factors...which has the potential to benefit individual and public health," the authors write.
Over 4 months, 33 adults who had smoked 15 or more cigarettes a day for at least 3 years reduced and tried to quit smoking. To help curb their cravings, they used a nicotine-containing nasal spray manufactured by Pharmacia Consumer Healthcare, which funded the study.
Carbon monoxide is a byproduct of tobacco smoke that has been found to boost cholesterol, levels of white blood cells and other risk factors for heart disease. The gas can also impair the blood's ability to transport oxygen throughout the body, which may raise the risk of heart attack.
According to previous research cited in the report, reducing total cholesterol by up to 9% and reducing LDL cholesterol by just 1% can lower a person's risk of heart disease.
