Lung cancer is the uncontrolled growth of abnormal cells in one or both lungs. These abnormal cells do not carry out the functions of normal lung cells and do not develop into healthy lung tissue. As they grow, the abnormal cells can form tumors and interfere with the functioning of the lung, which provides oxygen to the body via the blood.

Lung cancer is the most common cause of death due to cancer in both men and women throughout the world. According to the U.S. National Cancer Institute, approximately one out of every 14 men and women in the U.S. is diagnosed with cancer of the lung at some point in their lifetime. Lung cancer is predominantly a disease of the elderly; almost 70% of people diagnosed with lung cancer are over 65 years of age, while less than 3% of lung cancers occur in people under 45 years of age.

What Causes Lung Cancer?

The development of lung cancer is strongly associated with cigarette smoking, approximately 90% of lung cancers are attributable to use of tobacco. Pipe and cigar smoking can also cause lung cancer, but the risk is not as high as with cigarette smoking. Tobacco smoke contains more than 4,000 chemical compounds, many of which are cancer causing (carcinogens). Passive smoking, i.e. the inhalation of tobacco smoke by non-smokers who live or work with smokers, is also an established risk factor for the development of lung cancer.

Genetic susceptibility (i.e. family history) may play a role in the development of lung cancer. Other causes of lung cancer include air pollution (from vehicles, industry, and power generation) and inhalation of asbestos fibres (usually in the workplace).

Lung Cancer Symptoms

Early symptoms and signs of lung cancer

There may be no symptoms at the onset of the disease. When present, common symptoms of lung cancer may include:

Coughing: This includes a persistent cough that doesn't go away or changes to a chronic smoker's cough, such as more coughing or pain.
Coughing up blood: Coughing up blood or rust-colored sputum (spit or phlegm) should always be discussed with your doctor.
Breathing Difficulties: Shortness of breath, wheezing or noisy breathing (called stridor) may all be signs of lung cancer.
Loss of Appetite: Many cancers cause changes in appetite, which may lead to unintended weight loss.
Fatigue: It is common to feel weak or excessively tired.
Recurring infections: Recurring infections, like bronchitis or pneumonia, may be one of the signs of lung cancer.
Signs of advanced stages of lung cancer

Advanced stages of lung cancer are often characterized by the spread of cancer to distant sites in the body. This may affect the bones, liver or brain. As other parts of the body are affected, new lung cancer symptoms may develop, including:

Bone pain
Swelling of the face, arms or neck
Headaches, dizziness or limbs that become weak or numb
Jaundice
Lumps in the neck or collar-bone region
Treatment

Treatment for cancer involves a combination of surgery to remove cancer cells, chemotherapy and radiation therapy to kill cancer cells. Lung cancer is incurable unless complete surgical removal of the tumour cells can be achieved. Surgery is the most effective treatment for lung cancer, but only a few percentage of lung cancers are suitable for surgery i.e. Stage I and II NSCLC and cancer that has not spread beyond the lung.

Radiation therapy may be used for both NSCLC and SCLC and is a good option for people who are not suitable for surgery or who refuse surgery. Chemotherapy is used for both NSCLC and SCLC. Chemotherapy drugs may be given alone or in combination with surgery or radiation therapy. Chemotherapy is the treatment of first choice for SCLC since it has usually spread extensively in the body by the time it has been diagnosed.

Also used in the treatment of lung cancer are targeted therapies. These are drugs (gefitinib and erlotinib) or antibodies (cetuximab, bevacizumab) that block the growth and spread of cancer by interfering with specific molecules involved in tumor growth and progression. They are used in some patients with NSCLC that does not respond to standard chemotherapy.

Lung Cancer: Causes, Symptoms and Treatments

Lasers have come as a boon to treat many medical conditions very safely and effectively. They are absolutely indispensable for permanent hair removal, tattoo removal, freckle removal, skin rejuvenation, treatment of birthmarks and many other internal medical conditions. There is a common misconception that lasers are harmful for your skin and can cause skin cancers. This is far from the truth, since lasers are actually used to treat skin cancers and also help in keeping the skin youthful and rejuvenated. 

Lasers use non-ionising light (like red or green light) and not ionising radiation like x-rays or gamma rays. These spectrums of light do not induce cancer formation. 
Fair skinned races are at much greater risk than skin of color. Melanin in darker skin does not allow harmful UV light in sunlight to penetrate through and the risk of skin cancers in darker skin is therefore small with normal sun exposure. Also, common lasers do not use UV light. 
Laser treatments are administered not in prolonged durations but in pulses much less than a second and parameters in the range of milliseconds and microseconds are most commonly used. Prolonged sun exposure is the most common precipitating factor for skin cancers. 
Laser light does not reach any internal organ. In fact, it requires some expertise even to make laser light reach its target just 1-2 millimeters below the skin. This is because melanin pigment in skin blocks laser light from getting through. An expert dermatologist with sound knowledge of skin optics and laser physics is able to achieve this safely and effectively. 
Laser treatments work on the principle of ''selective photothermolysis'. This means that laser light very specifically destroys only the intended target. Thus, a hair removal laser will destroy only the hair roots while leaving surrounding skin structures unharmed. Similarly, blood vessels in birth marks, collagen in wrinkles or scars, abnormal growths and cancers and individual inks in tattoos can be targeted very specifically with lasers without affecting any other structure.

Lasers - Do Not Cause Cancers!

Skin cancer occurs when the DNA of the cells undergo mutations, thus causing unsystematic cell growth which evolve into a cancerous mass. This abnormality stems from the over-exposure of your skin to the Ultraviolet Radiations of the sun. 

However, there are other factors too that escalate the risks of skin cancer.

Fairer skin tone: Inadequate pigmentation or melanin content in the skin offers less protection against the harmful UV radiations. Having red or blond hair or light-colored eyes makes you more vulnerable to this condition.
Sunburns: A history of sunburns can often be the root cause behind skin cancer.
Excessive exposure to the sun: If you spend a considerable amount of time under the sun and especially if your skin is not protected by clothing or sunscreen, you tend to get a tan. A tan is the skin s response to extreme UV radiations.
Moles: Abnormally large moles, known as dysplastic nevi, are more likely to turn malignant. Watch out for any change in the texture of the moles, which is one of the most important symptoms of skin cancer.
Family history: According to studies, genes are considered to be one of the causes behind skin cancer. Hence, a family history of this condition could spell trouble for one.
Personal history: Having suffered from skin cancer previously in life could endanger one even more.
Pre-cancerous skin injury: Skin lesions, also known as actinic keratosis, make you prone to developing pre-cancerous growths on the skin. These could appear as scaly rough patches, ranging from brown to pink in color. They usually crop up on the hands, head and faces of people who are comparatively of a fairer skin tone.
A weak immune system: People having a poor immunity system, including the ones affected by HIV/AIDS or are on immunosuppressant drugs which follow any organ transplantation have greater risks of developing cancer.
Exposure to radiation: Radiation therapy is an often used treatment method for treating various skin conditions such as acne and eczema. Having been exposed to radiations, one could be indisposed to this condition even more.
Exposure to certain chemicals: Exposure to certain substances such as arsenic might increase your vulnerability manifold.

Skin Cancer - 10 Things That Can Increase Your Risk!

The prostate gland in males surrounds the urethra, through which urine and sperm are passed out of the body. Its function is to secrete a fluid, which provides nourishment to the sperm. It is about the shape of a walnut and is present between the pubic bone and the rectum.

As a man crosses 40, the prostate gland begins to increase in size due to an increase in the number of cells. This is known as hyperplasia.  The condition is usually benign and therefore the name benign prostate hyperplasia (BPH). As it continues to grow, there is an increased pressure on the urethra. Therefore, there can be problems with urination. The bladder, being a muscular organ, compensates to some extent and so the problems with urination are mostly managed. If left untreated, this can continue to be a major problem and the bladder may not be able to compensate. In men who are 60-plus, BPH is very common.

Signs and symptoms 

One of the initial symptoms of BPH is when the urine stream begins to grow weak.
There could also be a reduced speed of passing urine.
Men with BPH never have a feeling of complete emptying of the bladder.
On the other hand, there is also a constant difficulty in initiating a urine stream. There could be intermittent breaks in the urine stream.
The person may feel the need to strain to initiate the stream and to ensure complete emptying.
There could be dribbling of urine after passing urine.
The duration between two bathroom visits can constantly reduce, with the constant urge to urinate.
There is a constant urge to visit the bathroom, which is more common in the night. One of the most annoying features of BPH is the walking up at night to urinate, but with an inability to initiate a stream and an inability to completely empty the bladder, it leaves the person very irritated and frustrated.
There could be blood in the urine. In fact, blood in the urine accompanied by fever, chills, nausea and vomiting are indications of an emergency.
There could be blockage of urine completely, if the enlargement is quite severe.
Diagnosis
If you are having any of these symptoms, then the doctor will first test for an enlarged prostate through a digital rectal exam. Then a test is done to check a chemical called prostate specific antigen.  Increased levels of this chemical is almost always indicative of BPH. In addition, X-rays and scanning may be used to confirm diagnosis. 

Treatment
Though medications are available, confirmatory treatment is through surgical removal. The procedure needs a inimum of 2 to 3 days.

Enlarged Prostate - 10 Warning Signs To Watch Out For

Benign prostatic hyperplasia or BPH is a condition where the prostate gland gets enlarged. This is mostly common in men who are ageing. When the prostate gland gets enlarged, the flow of urine through the urethra gets blocked, and hence, several problems related to urination may occur. BPH occurs as a result of hormonal imbalance. If untreated, BPH can lead to severe bladder and urinary health conditions.
There are several symptoms and signs of benign prostatic hyperplasia. Here are 7 common symptoms:

1. A frequent need for urination: Men affected by BPH feel an increased need to urinate frequently. This gets enhanced during the night and is called nocturia. The patient may even need to urinate more than eight times a day. Due to the enlarged prostate gland, more pressure is put on the urethra, which leads to uncontrollable urination.
2. Urinating difficulties: The act of urination becomes difficult. Because of enhanced pressure on the urethra, the flow of urine to the penis from the bladder gets blocked. This makes a urine stream hard to start. The urine stream gets weak and interrupted, and more difficulty may be experienced during the end of urination.
3. Pain during urination and ejaculation: Due to pressure on the urinary tract and reproductive system, pain can accompany urination and ejaculation. Some patients tend to push urine out, which results in pain. The pain may also occur because of infection during BPH.
4. Blood in urine and an unusual color/smell: Urine may take a dark color and have an unusual smell due to urinary retention. Unpleasant urine smell signifies urinary tract infection. Blood in the urine may also result because of dilated veins present on the surface of the enlarged prostate.
5. Urinary retention: When a patient is unable to pass any urine, it is called urinary retention. Such a condition requires immediate treatment, and you need to consult a doctor immediately.
6. Urinary tract infections: Bacteria may start growing in the bladder when the bladder is not fully emptied of urine. This bacterial infection causes darkening of the urine, and emission of a foul odor.
7. Bladder stones: Bladder stones may develop because of the inability of the bladder to empty itself completely. This is a major symptom of BPH. Hard lumps of minerals or bladder stones are formed when the urine present in the bladder gets highly concentrated, which causes the crystallization of minerals. Bladder stones may cause infections, result in blood in urine, cause bladder irritation and may also block urine flow.

So you see that benign prostatic hyperplasia involves the enlargement of the prostate gland, and results in several problems related to urination and different symptoms. Hence, immediate treatment is advisable.

7 Symptoms of Benign Prostatic Hyperplasia

A gland that produces a liquid which mixes with sperm and is ejaculated as semen during sexual activity, is the prostate gland and is located under the bladder of a man. Cancer in the prostate is one of the most common cancers that occur among men.

The risk of developing prostate cancer increases progressively with age. Although there is no absolute prevention of prostate cancer, evidence and doctors suggest that a healthy diet can play a key role. Here are a few tips that can go a long way in prevention of prostate cancer:

Red Foods: Tomatoes, carrot, watermelon, and other red foods get their bright color from a powerful antioxidant called lycopene. Studies have proved that by having fruits that contain lycopene, you can reduce your risk of prostate cancer. Some findings suggest that cooking tomatoes make it easier for your body to absorb this antioxidant.
Fruits and Vegetables: Green vegetables contain compounds called carcinogens, which help your body in breaking down cancer-causing substances. Spreading of cancer can be slowed down through a nutrient-rich diet. Avoiding processed junk food and eating fruits and vegetables containing nutrients and vitamins may lower the risk of getting prostate cancer.
Feast on Fish: Fatty acid, also known as omega-3, is found in certain fish including sardines, tuna, mackerel, trout, and salmon. This may help in reducing the risk of developing prostate cancer.
Soy and Tea: Some studies suggest that men who drink green tea or take green tea extract supplements have a lower risk of developing prostate cancer. Many soy products and other foods contain a nutrient called isoflavones, which has been linked to a reduced risk of prostate cancer.
Coffee: Studies show that drinking three cups of coffee a day can reduce the chances of prostate cancer by 11 percent. There is a dose-response relationship between coffee and prostate cancer. The effects of prostate cancer go up or down with the amount of coffee you take. Someone who grabs an occasional cup only, may not have these effects. However, high doses of caffeine can result in major health issues.
Fat: Studies indicate that animal fats and an increased risk of prostate cancer are linked. It is advised to replace animal-based fats with any kind of plant-based fat. In addition to this, overcooking the meat produces carcinogens, therefore it is suggested to be strictly avoided.
Quit Smoking: Smokers are more likely to have an aggressive form of prostate cancer. The chances of a recurrence of the disease are more for people who smoke. It is never too late to quit smoking.
Exercise: Regular exercise and maintaining a healthy body can help you to increase your muscle mass and metabolism. Too much fat in the middle of your body is linked to an increased risk of prostate cancer. You can try walking, running, bicycling or swimming to reduce the weight to lead a healthy life.
It is important to look after yourself and start taking essential steps to prevent prostate cancer rather than trying to manage it once you get it.

8 Easy Ways By Which You Can Prevent Prostate Cancer!

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