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Prostate Cancer
Posted on
Tuesday, December 30, 2008
by DSLR MASTER
What is the prostate gland?
The prostate gland is an organ that is located at the base or outlet (neck) of the urinary bladder. (See the diagram.) The gland surrounds the first part of the urethra. The urethra is the passage through which urine drains from the bladder to exit from the penis. One function of the prostate gland is to help control urination by pressing directly against the part of the urethra that it surrounds. Another function of the prostate gland is to produce some of the substances that are found in normal semen, such as minerals and sugar. Semen is the fluid that transports the sperm. A man can manage quite well, however, without his prostate gland. (See the section on surgical treatment for prostate cancer.)
In a young man, the normal prostate gland is the size of a walnut. During normal aging, however, the gland usually grows larger. This enlargement with aging is called benign prostatic hypertrophy (BPH), but this condition is not associated with prostate cancer. Both BPH and prostate cancer, however, can cause similar problems in older men. For example, an enlarged prostate gland can squeeze or impinge on the outlet of the bladder or the urethra, leading to difficulty with urination. The resulting symptoms commonly include slowing of the urinary stream and urinating more frequently, particularly at night.
What is prostate cancer?
Prostate cancer is a malignant (cancerous) tumor (growth) that consists of cells from the prostate gland. The tumor usually grows slowly and remains confined to the gland for many years. During this time, the tumor produces little or no symptoms or outward signs (abnormalities on physical examination). As the cancer advances, however, it can spread beyond the prostate into the surrounding tissues (local spread). Moreover, the cancer also can metastasize (spread even farther) throughout other areas of the body, such as the bones, lungs, and liver. Symptoms and signs, therefore, are more often associated with advanced prostate cancer.
Why is prostate cancer important?
Prostate cancer is the most common malignancy in American men and the second leading cause of deaths from cancer, after lung cancer. Most experts in this field, therefore, recommend that beginning at age 40, all men should undergo yearly screening for prostate cancer
What causes prostate cancer?
The cause of prostate cancer is unknown, but the cancer is thought not to be related to benign prostatic hypertrophy (BPH). The risk (predisposing) factors for prostate cancer include advancing age, genetics (heredity), hormonal influences, and such environmental factors as toxins, chemicals, and industrial products. The chances of developing prostate cancer increase with age. Thus, prostate cancer under age 40 is extremely rare, while it is common in men older than 80 years of age. As a matter of fact, some studies have suggested that among men over 80, between 50 and 80% of them may have prostate cancer!
Genetics (heredity), as just mentioned, plays a role in the risk of developing a prostate cancer. For example, black American men have a higher risk of getting prostate cancer than do Japanese or white American men. Environment, diet, and other unknown factors, however, can modify such genetic predispositions. For example, prostate cancer is uncommon in Japanese men living in their native Japan. However, when these men move to the United States, their incidence of prostate cancer rises significantly. Prostate cancer is also more common among family members of individuals with prostate cancer. Thus, a person whose father, grandfather, or even uncle has prostate cancer is at an increased risk for also developing prostate cancer. To date, however, no specific prostate cancer gene has been identified and verified. (Genes, which are situated on chromosomes within the nucleus of cells, are the chemical compounds that determine specific traits in individuals.)
Testosterone, the male hormone, directly stimulates the growth of both normal prostate tissue and prostate cancer cells. Not surprisingly, therefore, this hormone is thought to be involved in the development and growth of prostate cancer. The important implication of the role of this hormone is that decreasing the level of testosterone should be (and usually is) effective in inhibiting the growth of prostate cancer.
Environmental factors, such as cigarette smoking and diets that are high in saturated fat, seem to increase the risk of prostate cancer. Additional substances or toxins in the environment or from industrial sources might also promote the development of prostate cancer, but these have not yet been clearly identified.
What are the symptoms of prostate cancer?
In the early stages, prostate cancer often causes no symptoms for many years. As a matter of fact, these cancers frequently are first detected by an abnormality on a blood test (the PSA, discussed below) or as a hard nodule (lump) in the prostate gland. Usually, the doctor first feels the nodule during a routine digital (done with the finger) rectal examination. The prostate gland is located immediately in front of the rectum. As the cancer enlarges and presses on the urethra, the flow of urine diminishes and urination becomes more difficult. Patients may also experience burning with urination or blood in the urine. As the tumor continues to grow, it can completely block the flow of urine, resulting in a painfully obstructed and enlarged urinary bladder.
In the later stages, prostate cancer can spread locally into the surrounding tissue or the nearby lymph nodes, called the pelvic nodes. The cancer then can spread even farther (metastasize) to other areas of the body. The doctor on a rectal examination can sometimes detect local spread into the surrounding tissues. That is, the physician can feel a hard, fixed (not moveable) tumor extending from and beyond the gland. Prostate cancer usually metastasizes first to the lower spine or the pelvic bones (the bones connecting the lower spine to the hips), thereby causing back or pelvic pain. The cancer can then spread to the liver and lungs. Metastases (areas to which the cancer has spread) to the liver can cause pain in the abdomen and jaundice (yellow color of the skin) in rare instances. Metastases to the lungs can cause chest pain and coughing.
The prostate gland is an organ that is located at the base or outlet (neck) of the urinary bladder. (See the diagram.) The gland surrounds the first part of the urethra. The urethra is the passage through which urine drains from the bladder to exit from the penis. One function of the prostate gland is to help control urination by pressing directly against the part of the urethra that it surrounds. Another function of the prostate gland is to produce some of the substances that are found in normal semen, such as minerals and sugar. Semen is the fluid that transports the sperm. A man can manage quite well, however, without his prostate gland. (See the section on surgical treatment for prostate cancer.)
In a young man, the normal prostate gland is the size of a walnut. During normal aging, however, the gland usually grows larger. This enlargement with aging is called benign prostatic hypertrophy (BPH), but this condition is not associated with prostate cancer. Both BPH and prostate cancer, however, can cause similar problems in older men. For example, an enlarged prostate gland can squeeze or impinge on the outlet of the bladder or the urethra, leading to difficulty with urination. The resulting symptoms commonly include slowing of the urinary stream and urinating more frequently, particularly at night.
What is prostate cancer?
Prostate cancer is a malignant (cancerous) tumor (growth) that consists of cells from the prostate gland. The tumor usually grows slowly and remains confined to the gland for many years. During this time, the tumor produces little or no symptoms or outward signs (abnormalities on physical examination). As the cancer advances, however, it can spread beyond the prostate into the surrounding tissues (local spread). Moreover, the cancer also can metastasize (spread even farther) throughout other areas of the body, such as the bones, lungs, and liver. Symptoms and signs, therefore, are more often associated with advanced prostate cancer.
Why is prostate cancer important?
Prostate cancer is the most common malignancy in American men and the second leading cause of deaths from cancer, after lung cancer. Most experts in this field, therefore, recommend that beginning at age 40, all men should undergo yearly screening for prostate cancer
What causes prostate cancer?
The cause of prostate cancer is unknown, but the cancer is thought not to be related to benign prostatic hypertrophy (BPH). The risk (predisposing) factors for prostate cancer include advancing age, genetics (heredity), hormonal influences, and such environmental factors as toxins, chemicals, and industrial products. The chances of developing prostate cancer increase with age. Thus, prostate cancer under age 40 is extremely rare, while it is common in men older than 80 years of age. As a matter of fact, some studies have suggested that among men over 80, between 50 and 80% of them may have prostate cancer!
Genetics (heredity), as just mentioned, plays a role in the risk of developing a prostate cancer. For example, black American men have a higher risk of getting prostate cancer than do Japanese or white American men. Environment, diet, and other unknown factors, however, can modify such genetic predispositions. For example, prostate cancer is uncommon in Japanese men living in their native Japan. However, when these men move to the United States, their incidence of prostate cancer rises significantly. Prostate cancer is also more common among family members of individuals with prostate cancer. Thus, a person whose father, grandfather, or even uncle has prostate cancer is at an increased risk for also developing prostate cancer. To date, however, no specific prostate cancer gene has been identified and verified. (Genes, which are situated on chromosomes within the nucleus of cells, are the chemical compounds that determine specific traits in individuals.)
Testosterone, the male hormone, directly stimulates the growth of both normal prostate tissue and prostate cancer cells. Not surprisingly, therefore, this hormone is thought to be involved in the development and growth of prostate cancer. The important implication of the role of this hormone is that decreasing the level of testosterone should be (and usually is) effective in inhibiting the growth of prostate cancer.
Environmental factors, such as cigarette smoking and diets that are high in saturated fat, seem to increase the risk of prostate cancer. Additional substances or toxins in the environment or from industrial sources might also promote the development of prostate cancer, but these have not yet been clearly identified.
What are the symptoms of prostate cancer?
In the early stages, prostate cancer often causes no symptoms for many years. As a matter of fact, these cancers frequently are first detected by an abnormality on a blood test (the PSA, discussed below) or as a hard nodule (lump) in the prostate gland. Usually, the doctor first feels the nodule during a routine digital (done with the finger) rectal examination. The prostate gland is located immediately in front of the rectum. As the cancer enlarges and presses on the urethra, the flow of urine diminishes and urination becomes more difficult. Patients may also experience burning with urination or blood in the urine. As the tumor continues to grow, it can completely block the flow of urine, resulting in a painfully obstructed and enlarged urinary bladder.
In the later stages, prostate cancer can spread locally into the surrounding tissue or the nearby lymph nodes, called the pelvic nodes. The cancer then can spread even farther (metastasize) to other areas of the body. The doctor on a rectal examination can sometimes detect local spread into the surrounding tissues. That is, the physician can feel a hard, fixed (not moveable) tumor extending from and beyond the gland. Prostate cancer usually metastasizes first to the lower spine or the pelvic bones (the bones connecting the lower spine to the hips), thereby causing back or pelvic pain. The cancer can then spread to the liver and lungs. Metastases (areas to which the cancer has spread) to the liver can cause pain in the abdomen and jaundice (yellow color of the skin) in rare instances. Metastases to the lungs can cause chest pain and coughing.
posted by DSLR MASTER @ 11:37 AM
Pose of the Month: Matsyasana
Posted on
Thursday, December 18, 2008
by DSLR MASTER
Walking into an yoga class can sometimes feel like you’ve stepped into another world. The language of asana is often different than the language of everyday life with phrases like “opening our hearts,” “staying with our breath,” and “being in the moment.” In the context of a yoga asana practice, our ability to truly feel these words of guidance sometimes gets lost in the rhetoric of the experience. We are not always able to “feel” what we are told to feel in a specific asana, which can be frustrating and discouraging. But when the feelings that we seek are “opening our hearts” and “awareness of the breath,” Matsyasana or Fish Pose is an indispensable resource.
Matsya was an incarnation of the Lord Vishnu who is the source and the maintainer of the universe and it’s manifestation in the microcosm of our Selves. During a great flood, Lord Vishnu took the form of a fish, Matsya, to warn of the impending danger and carry the family of the sage Manu and seven great rishis to safety. Through its expression in asana, the fish expands the space of the heart and brings a deeper awareness to our breath, the great sustainers of our human life. In this asana we may feel vulnerable as we open our hearts completely, or we may feel strengthened as we focus on the sensation and sound of our breath that is the source of all our experiences.
Matsyasana is meant without question to reveal the expansive quality of the heart, thus uncovering our core of calm that underlies all events in our lives, and by expanding the space of the throat as well, we are drawn into the experience of our moment to moment companion of the breath. As the heart lifts above the space of the head in Fish pose, we are reminded to direct our actions more from the wisdom of the heart and less from the scrutiny of the mind.
Use Matsyasana when we are flooded with the rising waters of our everyday lives, to restore the calm eye of the heart in the middle of the storm of our mind, which will always lead us to higher ground.
—Kelly Golden
Among the many benefits of Matsyasana is the effect on our spine. A common postural misalignment is thoracic kyphosis, exhibited by a rounded upper back, which can lead to rounded shoulders and a forward head. Physical activities such as driving, working at a desk for 6-9 hours a day, a typical gym workout, as well as emotional and energetic responses to low self esteem, lack of confidence, and feeling negative about ourselves can cause us to exhibit this misalignment.
When our spine becomes misaligned into kyphosis, we develop tightness of the muscles of the chest, shoulders and neck (Latissimus Dorsi, Pectoralis Major and Pectoralis Minor). We also end up with weakness of the muscles that support our upper back, neck and shoulders (Middle and Lower Trapezius and Rhomboids).
These muscular and joint imbalances can lead to compression of the vertebrae of the neck or compression of the nerves that go from the neck and into the arm. Headaches and pain throughout the neck and into the shoulder blades will often result. Compression of the nerves can be the cause of pain down the arm and into the hand (i.e. thoracic outlet syndrome) Matsyasana works to correct the postural misalignments of thoracic kyphosis and to relieve the resulting joint and muscular imbalances.
To provide support in fish pose, you can use two blocks; one placed horizontally under the lower edge of your scapula and one under your head. Make sure the blocks are at a level that allows for a smooth curve of the cervical spine versus having the head in hyperextension, coming at a sharp angle towards the second block. You can also use a bolster or blankets under your thoracic spine either vertically down your spine or horizontally below your shoulder blades. Once in supported fish you can lay your arms out to the side in a “T” position to focus on the Pectoralis Major or bring them overhead towards the floor to focus on the Pectoralis Major and Latissimus Dorsi. If you are practicing Matsyasana without support, you want to make sure not to have too much pressure on your head and not to have your head hyperextended.
posted by DSLR MASTER @ 8:52 AM