Alzheimer's disease is a neurological problem that is characterised by a cognitive decline and memory loss. It is a type of neurodegenerative dementia. The symptoms of alzheimer's disease include not being able to absorb and retain new information, lack of reasoning and judging, not being able to take on complex tasks, impaired visuospatial abilities, problems in reading, writing and speech, among many others. If a person has at least two of these symptoms in a debilitating manner, then the diagnosis can be made in favour of alzheimer's disease. The main causes of alzheimer's are shrinkage of the brain size and death of the brain cells. The immune system is also said to trigger this neurodegenerative disease. Let us find out what medical science has found so far.

1. Connections: many a times, in alzheimer's disease, the memory and behaviour of the person changes because the brain is unable to make proper neural connections which can lead to memory loss of how a person behaved and the elements that formed the basis of the patient's cognition. Apparently, the immune system behaves in the same way within the brain and blocks the connection. This happens because there is constant communication between the brain and immune system along neurological lines, which is where the disease first emanates.

2. Inflammation: the brain is prone to inflammation or swelling that is not the normal kind. This inflammation happens as a result of the activation of the infection fighting neurotransmitters and the chemical changes that happen in the brain when an infection strikes. The inflammation usually happens in the plaques or clumps which the brain tries to protect. These clumps are made up of a protein called amyloid. The immune system is responsible for creating this inflammation in the brain of the patient.

3. Pattern recognition receptors: many of these receptors work in different manners and cooperate with each other to create a response in the brain. These prrs can be found in the brain plaques, and they develop the signs of danger which further fuels the inflammation in the brain as a matter of protection.

4. Activation of cells linked with the immune system: when the prrs begin to respond, it basically activates the immune system and the cells of the same. This is the basic reaction that causes the changes in brain which then leads to the attachment of the protein to the tissue that is diseased, in which case alzheimer's disease starts. The inflammation that we had spoken about earlier basically happens in the nervous tissue.

It is important to recognise and act on the initial signs of alzheimer's disease before it progresses beyond one's control.

Can the Immune System Trigger Alzheimer's Disease

Lung diseases are some of the most common diseases suffered by human beings throughout the world. Smoking and infections are responsible for most lung diseases. The lungs perform one of the most important functions of the body. It is also one of the most active organs in the human body and hence lung problems can arise due to problems in any other part of the body. Some of the most common and infectious lung diseases are discussed below.

1. Asthma
Asthma is a common long term disease which is characterized by reversible airflow obstruction and bronchospasm. The symptoms of asthma include coughing, shortness of breath and tightness of chest. These symptoms may occur frequently during a day and depending on the person, it may become worse during night or during a certain exercise.

2. Pneumonia
Pneumonia is another common lung problem which is suffered due to inflammation in the microscopic air sacs in the lungs known as alveoli. Symptoms of pneumonia include dry cough, chest pain, breathing problem and fever. Pneumonia is caused most commonly by viruses or bacteria. It is also caused by certain medications and conditions which are popularly known as autoimmune diseases. There are a number of vaccines available to prevent certain types of pneumonia. Other methods include hand washing and refraining from smoking.

3. Tuberculosis
Tuberculosis is a very infectious disease which is caused by the bacteria mycobacterium tuberculosis. Although tuberculosis generally affects the lungs, but it has been known to affect other parts of the body as well. Symptoms of tuberculosis include cough containing sputum with blood, night sweats, fever and weight loss. Air is an active medium for spreading tuberculosis. This happens when people who already have tuberculosis sneeze, cough or speak. Infection occurs more in those who have hiv/aids or those who smoke. Prevention of tuberculosis includes staying away and keeping those who are at high risk, early detection and treatment and vaccination.

4. Mesothelioma
Mesothelioma is a type of cancer which affects the lungs. It affects the lining of the lungs and chest wall. Symptoms of mesothelioma include shortness of breath, swollen abdomen, cough, chest pain, weight loss and general lethargy. Mesothelioma is caused mainly due to exposure to asbestos. Those people who mine asbestos, produce products from asbestos, work with asbestos products are at high risk. Mesothelioma also results from genetical problems and due to infection caused by the simian virus 40.

5. Pulmonary embolism
This is a disease caused due to blockage of an artery in the lungs by a substance which has travelled from another part of the body by the bloodstream. Symptoms of this disease include chest pain, breath shortness and coughing up of blood. There may also be signs of blood clot in the legs.

Types of Lung Diseases

Peyronie's disease is a problem predominantly found in 3-9% of adult men, especially after 40 years of age. In the disease, a scar tissue is formed in the outer layer of the penis called tunica albuginea. Scar tissue is a just plaque inside the penis.

Peyronie's disease causes the penis to bend sideways or upwards and can make sex become difficult due to deformity and erection may be a painful process. It is usually associated with erectile dysfunctions, severe anxiety and reduced testosterone levels. It is worth noting that there are treatments for peyronie's disease, however, the pain often goes away on its own, generally, in 6-18 months of onset, but the deformity stays.

Here is everything you need to know about this disease:

Causes
It is not known exactly what causes peyronie's disease, however, there are some factors, which make it more likely than others. Here are those factors:

1. Trauma: this is the most common factor which causes peyronie's disease. It is believed that when someone suffers from tiny bleeding of the penis, which is very common in patients of diabetes, the plaque starts to build up. The injury or trauma, which causes the bleeding may go unnoticed as well.
2. Genes: genes are also a possible cause of peyronie's disease.

Symptoms
The symptoms of peyronie's disease vary, such as:
1. Pain on erection: there is usually pain in erection during the initial phase.
2. Bent penis: when the penis becomes hard before sex, it may bend downwards or sideways by more than 15 degree, so the vaginal entry becomes impossible or is painful for the partner.
3. Scars: tissue may form on other parts of the body, as well including the hand and feet. In fact, it has been said that men who have scarring in the hand, which affect the fingers are more likely to contract the disease as well.
One may see extensive scarring in hands in a disease called dupuytren's contracture. 

Treatment
1. Wait &amp; watch: it is worth noting the acute phase with pain is treated by wait and watch, controlling contributory factors like diabetes, low testosterone and psychogenic factors. Antioxidants are useful. Large number of cases are relieved of the pain in 1 to 1.5 years.
2. Intralesional injection: if the bend is significant enough to interfere in sexual functioning, it can be treated by injecting medicines in the plaque. The medicine, xiaflex is currently not available in india and other medicines given are not very effective.
3. Surgery: this is a last option when peyronie's disease has not gone on it's own and medicines are not helping either. The two most common procedures performed are removing the plaque and putting a tissue graft in its place and also removing the tissue opposite the plaque to counter the bending effect. The results are fairly good.

Going for a penile implant is the last option, which is a permanent solution and is commonly done in india. And, the success rate for penile implant is also very high.

Peyronie's Disease: About Bent Penis

Hearing loss is a common sensory problem that generally develops with increasing age or due to prolonged or persistent exposure to loud noises. It is one of the most typical problems that occurs throughout the world. If you are suffering from partial hearing loss, you may find ways of keeping in touch with your family and friends. If you are not suffering from such the following may help you keep your hearing intact for years to come.

Types of hearing loss
There are two main types of hearing loss: 
1. Conductive hearing loss where the problem lies in the middle ear, eardrum or ossicles. A conductive hearing loss affects the passage of sound between the eardrum and the inner ear. Sound passes down the ear canal to the ear drum and through the middle ear, where the sound is transmitted across the middle ear by the three bones called the ossicles to the inner ear.

Causes of conductive hearing loss:
1. Malformation of outer ear, ear canal, or middle ear structures
2. Fluid in the middle ear from colds
3. Ear infection (otitis media - an infection of the middle ear in which an accumulation of fluid may interfere with the movement of the eardrum and ossicles
4. Allergies
5. Poor eustachian tube function
6. Perforated eardrum
7. Benign tumors
8. Impacted earwax
9. Infection in the ear canal
10. Foreign body in the ear
11. Otosclerosis

2. Sensorineural hearing loss where there is damage in the inner ear, cochlea or hearing nerve. Sensorineural hearing loss (snhl) occurs when there is damage to the inner ear (cochlea), or to the nerve pathways from the inner ear to the brain. Most of the time, snhl cannot be medically or surgically corrected. This is the most common type of permanent hearing loss.

Causes of sensorineural hearing loss:
1. Exposure to loud noise
2. Head trauma
3. Virus or disease
4. Autoimmune inner ear disease
5. Hearing loss that runs in the family
6. Aging (presbycusis)
7. Malformation of the inner ear
8. Meniere's disease
9. Otosclerosis 
10. Tumors

Coping with hearing loss
Antibiotics and eardrops are often prescribed to treat hearing loss and its symptoms. In many cases, people suffering from severe hearing loss use hearing aids. Hearing aids are tiny instruments that people use in their ears to make sounds louder. People who suffer from hearing loss cope with their problems through increased concentration and focus. The usual way involves reading the moving lips of the person while they talk. Prevention is better than cure and is the best solution to avoid long term hearing loss. Avoiding continuous loud noises, to the possible extent helps prevent hearing loss to a great extent.

All About Hearing Loss

SSHL is not like any other normal hear-loss trouble. Rather it is quite a severe condition. Sudden deafness can occur at any time due to several reasons. This trouble does not affect both the ears rather only one specific ear is usually affected, and thus this is one of the prominent signs that can help the doctors to understand that SSHL has occurred. 


What are the leading causes of this hearing loss?

    Head injury: If you have faced any severe kind of head injury ever, then it might bring SSHL. This is why you are suggested to get necessary treatment on time so that this kind of hearing loss can be avoided.
    Loud-noise exposure: If your ears are exposed to louder noises or sounds in a consistent manner, then there is a greater possibility of the occurrence of this hearing loss. Thus, you should stay away from unwanted noises. 
    Ageing: With the increase in age, hearing power slowly decreases. However, if you take proper precautions from the very beginning, then SSHL can be definitely avoided. 
    Blood-circulation troubles: Interrupted blood-circulation creates different physical troubles out of which hearing loos is one of the most prominent one. And if timely treatment is not provided, then it might get converted into SSHL. 
    Ototoxic medication: This kind of medication should not be continued for long without doctor's prescription otherwise SSHL might occur. 
    Lyme disease: This is a kind of disease, which occurs due to tick bites and this is pretty infectious in nature. Apart from that, this disease is now considered as one of the main sources of SSHL. 

How to evaluate this hearing loss? 

    History analysis: The history of the patient needs to be known first otherwise SSHL cannot be perfectly treated. If the history shows that the patient already has an existing trouble of ear loss for which SSHL has been proven, then in accordance with the same the treatment can be prescribed. 
    Laboratory and imaging: Laboratory analysis is one of the main methods for evaluating SSHL and necessary images of the ears boost the potentiality and importance of this kind of analysis to a great extent. 
    Quick evaluation: This kind of medical evaluation is mainly made on the basis of the symptoms. The doctors often follow the signs thoroughly in order to determine as to whether the patients have SSHL or not. This evaluation is highly supported by different medical tests that are prescribed by the doctor.

Sudden Sensorineural Hearing Loss: Causes and Evaluation

Scabies is a skin condition that causes the skin to itch. It is caused by a tiny burrowing mite, which is called Sarcoptes scabei. The presence of the mite in the burrowed areas causes intense itching, especially at night. This a contagious condition, which can quickly spread through physical contact in places like nursing homes, schools, prisons etc. Scabies is easily treatable by applying lotions to the skin that may kill the mite. Yet, one may still experience itching for several weeks.

The eight legged mite that causes the condition is microscopic. The female mite burrows just beneath the skin and makes a tunnel where it deposits eggs. These eggs hatch, mature and spread to the other areas of the skin or to the skin of other people. The body's allergic reaction to the mites, their eggs and wastes causes the itching.

Symptoms
Some of the symptoms of the conditions are severe itching, narrow irregular burrow tracks, which look like blisters or bumps on your skin. The burrow tracks generally appear in the folds of the skin. The common sites of the condition are between the fingers, armpits, around the waist, soles of your feet, knees, shoulder blades etc.

Complications
Some of the complications of the condition are:
1. Vigorous scratching, which can break your skin and can cause a secondary infection such as impetigo. This superficial skin infection is usually caused by the staphylococci bacteria.
2. Severe scratching can also lead to damaged and reddened skin, which in severe cases can start to bleed.

Risk factors
Crusted scabies, also known as Norwegian scabies is a severe form of the condition, which affects certain high risk groups, such as:
1. People with chronic medical conditions, such as HIV/Aids or chronic leukemia
2. Older people in nursing homes
3. People who are very ill

Risks and Complications of Scabies

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