Headaches: Causes, Diagnosis and Treatments

Headaches are one of the most common complaints, and most people experience them at some point in their life. They can affect anyone regardless of age, race, and gender.

The World Health Organization (WHO) reports that almost half of all adults worldwide will have experienced a headache within the last year.

A headache can be a sign of stress or emotional distress, or it can result from a medical disorder, such as migraine or high blood pressure, anxiety or depression. It can lead to other problems. People with chronic migraine headaches, for example, may find it hard to attend work or school regularly.

Migraines, cluster headaches, and hangovers are some of the causes of headaches.

Contents of this article:

1. What causes a headache?
2. Types of headache
3. Diagnosis
4. Treatment

What causes a headache?

Headache is a common complaint worldwide.

A headache can occur in any part of the head, on both sides of the head, or just in one location.

A headaches can radiate across the head from a central point or have a vise-like quality. They can be sharp, throbbing or dull, appear gradually or suddenly. They can last from less than an hour up to several days.

There are different ways to define headaches. The International Headache Society (IHS) categorize headaches as primary, when they are not caused by another condition, or secondary, when there is a further underlying cause.

Primary headaches

Primary headaches are stand-alone illnesses caused directly by the overactivity of, or problems with, structures in the head that are pain-sensitive.

This includes the blood vessels, muscles, and nerves of the head and neck. They may also result from changes in chemical activity in the brain.

Common primary headaches include migraines, cluster headaches, and tension headaches.

Secondary headaches

Secondary headaches are symptoms that happen when another condition stimulates the pain-sensitive nerves of the head.

A wide range of different conditions can cause secondary headaches.

These include:

Eating something very cold can lead to a "brain freeze."

• An alcohol-induced hangover
• Brain tumor
• Blood clots
• "Brain freeze," or ice-cream headaches
• Carbon monoxide poisoning
• Concussion
• Dehydration
• Glaucoma
• Influenza
• Overuse of pain medication, known as rebound headaches
• Panic attacks
• Stroke

As headaches can be a symptom of a serious condition, it is important to seek medical advice if they become more severe, regular, or persistent.

For example, if the headache is more painful and disruptive than previous headaches, worsens, or fails to improve with medication or is accompanied by other symptoms such as confusion, fever, sensory changes, and stiffness in the neck, a doctor should be contacted immediately.

Types of headache

The symptoms of a headache can depend on the type.

Tension-type headaches

Tension-type headaches are a common form of primary headache.

The person can feel as if they have a tight band around the head, with a constant, dull ache on both sides. The pain may spread to or from the neck. Such headaches normally begin slowly and gradually in the middle of the day.

Tension-type headaches can be either episodic or chronic. Episodic attacks are normally a few hours in duration, but can last for several days. Chronic headaches occur for 15 or more days a month for a period of at least 3 months.

Migraines

Migraine is the second most common form of primary headache and can have a major impact on the life of an individual. According to the WHO, migraine is the sixth highest cause of days lost due to disability worldwide. A migraine can last from a few hours to between 2 and 3 days.

A migraine headache may cause a pulsating, throbbing pain on one or both sides of the head. The aching may be accompanied by blurred vision, light-headedness, nausea, and sensory disturbances.

Rebound headaches

Rebound or medication-overuse headaches are the most common secondary headache.

They stem from an excessive use of medication to treat headache symptoms. They usually begin early in the day and persist throughout the day. They may improve with pain medication, but worsen when its effects wear off.

Rebound headaches can cause a range of symptoms, and the pain can be different each day. Along with the headache itself, rebound headaches can cause neck pain, restlessness, a feeling of nasal congestion, and reduced sleep quality.

Cluster headaches

Cluster headaches are a less common form of primary headache. They strike quickly, one or more times daily around the same time each day and often without warning.

They usually last between 15 minutes and 3 hours, and they persist for the duration of what is known as a cluster period, which normally lasts 6 to 12 weeks.

The pain caused by cluster headaches is severe, often described as sharp or burning, and it is normally located in or around one eye.

The affected area may become red and swollen, the eyelid may droop and the nasal passage on the affected side may become stuffy and runny.

Diagnosis

A doctor will usually be able to diagnose a particular type of headache through a description of the condition, the type of pain and the timing and pattern of attacks.

It may be a good idea to keep a diary detailing the symptoms of regular headaches and any possible triggers. This can help both the patient and the doctor in identifying the exact nature and possible cause of the headaches.

If the nature of the headache appears to be complex, tests may be carried out to eliminate more serious causes.

Further testing could include blood tests, X-rays, and brain scans, such as CT and MRI.

Treatment

The most common ways of treating headaches are rest and pain relief medication.

Generic pain relief medication is available over the counter (OTC), or doctors can prescribe preventative medication, such as tricyclic antidepressants, anti-epileptic drugs, and beta blockers.

It is important to follow the doctor's advice because overusing pain relief medication can lead to rebound headaches.

The treatment of rebound headaches involves the reducing or stopping pain relief medication.

In extreme cases, a short hospital stay may be needed to manage withdrawal safely and effectively.

Self-care

A number of steps can be taken to reduce the risk of headaches and to ease the pain if they do occur:

• Apply a heat pack or ice pack to your head or neck, but avoid extreme temperatures
• Avoid stressors, where possible, and develop healthy coping strategies for unavoidable stress
• Eat regular meals, taking care to maintain stable blood sugar

A hot shower can help, although in one rare condition hot water exposure can trigger headaches.

Exercising regularly and getting enough rest and regular sleep contribute to overall health and stress reduction.

Several alternative forms of treatment for headaches are also available, but it is important to consult a doctor before making any major changes or beginning any alternative forms of treatment.

Acupuncture is an alternative therapy that may help relieve headaches.

Alternative approaches include:

• Acupuncture
• Cognitive behavior therapy
• Herbal and nutritional health products
• Hypnosis
• Meditation

(Research: Acupuncture and Migraine)

Sometimes, a headache may result from a deficiency of a particular nutrient or nutrients, especially magnesium and certain B vitamins.

Nutrient deficiencies can be due to a poor quality diet, underlying malabsorption issues, or other medical conditions.

Anyone with a suspected nutrient deficiency should work with a qualified health professional to diagnose and correct the deficiency in a sustainable and holistic way, rather than relying on an isolated supplement.

The WHO points out that headaches are often not taken seriously because they are sporadic, most headaches do not lead to death, and they are not contagious.

They call for more resources to be allocated for the treatment of headache disorders, because of the huge health burden they represent.

This article originally appeared on medicalnewstoday.com Written by James McIntosh

How Hormones Control Us

Although we rarely think about the endocrine system, it influences almost every cell, organ, and function of our bodies. The endocrine system plays a role in regulating mood, growth and development, tissue function, metabolism, and sexual function and reproductive processes.

In general, the endocrine system is in charge of body processes that happen slowly, such as cell growth. Faster processes like breathing and body movement are controlled by the nervous system. But even though the nervous system and endocrine system are separate systems, they often work together to help the body function properly.

The foundations of the endocrine system are the hormones and glands. As the body's chemical messengers, hormones transfer information and instructions from one set of cells to another. Many different hormones move through the bloodstream, but each type of hormone is designed to affect only certain cells.

A gland is a group of cells that produces and secretes, or gives off, chemicals. A gland selects and removes materials from the blood, processes them, and secretes the finished chemical product for use somewhere in the body.

Some types of glands release their secretions in specific areas. For instance, exocrine (pronounced: EK-suh-krin) glands, such as the sweat and salivary glands, release secretions in the skin or inside the mouth. Endocrine glands, on the other hand, release more than 20 major hormones directly into the bloodstream where they can be transported to cells in other parts of the body.

The major glands that make up the human endocrine system include the:

• hypothalamus
• pituitary gland
• thyroid
• parathyroids
• adrenal glands
• pineal body
• reproductive glands (which include the ovaries and testes)
• pancreas

Want to learn more? Read more here.

It's Official: Yoga Helps Depression

Evidence keeps stacking up that yoga is a boon for both physical and mental health conditions. Now, a small new study from Boston University finds that taking yoga classes twice a week may help ease depression, thanks in part to deep breathing.

The study, which was published in the Journal of Alternative and Complementary Medicine, included 30 people from ages 18 to 64 with clinical depression, who either were not taking antidepressants or had been on a steady dose for at least three months. Half of the participants were assigned to take a 90-minute Iyengar yoga class three times per week, as well as four 30-minute sessions at home each week. People in the other group took two group classes and three at-home sessions every week.

A small new study from Boston University finds that taking yoga classes twice a week may help ease depression, thanks in part to deep breathing

Iyengar yoga classes emphasize alignment, precise postures and controlled breathing. The classes taught in the study also included 20 minutes of slow, gentle breathing, at a rate of five inhales exhales through the nose per minute.

After about three months, most of the people in both groups had lowered their scores on a depression-screening questionnaire by at least 50%. Not surprisingly, more yoga was better; those who took three classes per week had lower depression scores than those who took two per week.

But since many participants mentioned that the larger time commitment was challenging, the researchers actually recommend two classes per week, saying that the regimen still comes with meaningful benefits.

That yoga seems to be effective is good news for people struggling with depression. Lead author Dr. Chris Streeter, associate professor of psychiatry and neurology at Boston University School of Medicine, says that the practice has far fewer side effects and potential drug interactions than mood-altering medications. The most common complaint reported in the study was a small one—temporary muscle soreness—and one participant experienced distressing thoughts while practicing breathing exercises at home.

Some people who haven't responded to traditional treatments might do well with yoga, because unlike antidepressant drugs, yoga and deep breathing target the autonomic nervous system, Streeter says. “If your autonomic nervous system is balanced out, then the rest of the brain works better,” she says. Research shows that 40% of people on antidepressants do not recover fully from depression, says Streeter, which puts them at increased risk for a relapse. “Getting that 40% all the way better is a really important goal. Instead of adding another drug, I would argue that yoga is another thing you can add to the treatment regimen that might help.”

More research is needed to determine how yoga stacks up against other treatments. (A larger trial comparing yoga to walking is underway, the study notes.)

While Iyengar yoga is generally considered to be a safe practice for people of all levels, it's not the only type with health benefits, Streeter adds. “It depends on who the person is and what they’re looking for,” she says. For now, what's clear is that the type with the most health benefits will be whichever kind you stick with.

This article originally appeared on time.com and was written by Amanda MacMillan

What's the Point of Cartilage?

Cartilage is a resilient and smooth elastic tissue, rubber-like padding that covers and protects the ends of long bones at the joints, and is a structural component of the rib cage, the ear, the nose, the bronchial tubes, the intervertebral discs, and many other body components. It is not as hard and rigid as bone, but it is stiffer and less flexible than muscle.

Because of its rigidity, cartilage often serves the purpose of holding tubes open in the body. Examples include the rings of the trachea, such as the cricoid cartilage and carina, the torus tubarius at the opening of the pharyngotympanic/auditory tube, the ala of the nostrils, and the auricle/pinna of the ear.

Cartilage is composed of specialized cells called chondrocytes that produce a large amount of collagenous extracellular matrix, abundant ground substance that is rich in proteoglycan and elastin fibers. Cartilage is classified in three types, elastic cartilage, hyaline cartilage and fibrocartilage, which differ in relative amounts of collagen and proteoglycan.[1]

Cartilage does not contain blood vessels (it is avascular) or nerves (it is aneural). Nutrition is supplied to the chondrocytes by diffusion. The compression of the articular cartilage or flexion of the elastic cartilage generates fluid flow, which assists diffusion of nutrients to the chondrocytes. Compared to other connective tissues, cartilage has a very slow turnover of its extracellular matrix and does not repair.

This article originally appeared on wikipedia.org. Read more here.

In other news, the future is here: Repairing articular cartilage defects with an injectable gel engineered with gene modified BMSCs