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Beyond the Brain

Electrodes measure a Tibetan monk’s brain activity.

The ancient Egyptians thought so little of brain matter they made a practice of scooping it out through the nose of a dead leader before packing the skull with cloth before burial. They believed consciousness resided in the heart, a view shared by Aristotle and a legacy of medieval thinkers. Even when consensus for the locus of thought moved northward into the head, it was not the brain that was believed to be the sine qua non, but the empty spaces within it, called ventricles, where ephemeral spirits swirled about. As late as 1662, philosopher Henry More scoffed that the brain showed “no more capacity for thought than a cake of suet, or a bowl of curds.”

Around the same time, French philosopher René Descartes codified the separation of conscious thought from the physical flesh of the brain. Cartesian “dualism” exerted a powerful influence over Western science for centuries, and while dismissed by most neuroscientists today, still feeds the popular belief in mind as a magical, transcendent quality.

A contemporary of Descartes named Thomas Willis—often referred to as the father of neurology—was the first to suggest that not only was the brain itself the locus of the mind, but that different parts of the brain give rise to specific cognitive functions. Early 19th-century phrenologists pushed this notion in a quaint direction, proposing that personality proclivities could be deduced by feeling the bumps on a person’s skull, which were caused by the brain “pushing out” in places where it was particularly well developed. Plaster casts of the heads of executed criminals were examined and compared to a reference head to determine whether any particular protuberances could be reliably associated with criminal behavior.

Though absurdly unscientific even for its time, phrenology was remarkably prescient—up to a point. In the past decade especially, advanced technologies for capturing a snapshot of the brain in action have confirmed that discrete functions occur in specific locations. The neural “address” where you remember a phone number, for instance, is different from the one where you remember a face, and recalling a famous face involves different circuits than remembering your best friend’s.

Yet it is increasingly clear that cognitive functions cannot be pinned to spots on the brain like towns on a map. A given mental task may involve a complicated web of circuits, which interact in varying degrees with others throughout the brain—not like the parts in a machine, but like the instruments in a symphony orchestra combining their tenor, volume, and resonance to create a particular musical effect.

Corina’s brain all she is…is here

Corina Alamillo is lying on her right side in an operating room in the UCLA Medical Center. There is a pillow tucked beneath her cheek and a steel scaffold screwed into her forehead to keep her head perfectly still. A medical assistant in her late 20s, she has dark brown eyes, full eyebrows, and a round, open face.

Yoga Time!

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Yoga Time!

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Yoga (Sanskrit, ) refers to traditional physical and mental disciplines originating in India. The word is associated with meditative practices in Hinduism, Buddhism and Jainism.In Hinduism, it also refers to one of the six orthodox (āstika) schools of Hindu philosophy, and to the goal toward which that school directs its practices.In Jainism it refers to the sum total of all activities—mental, verbal and physical.

History of yoga

Main article: History of yoga

The Vedic Samhitas contain references to ascetics, while ascetic practices (tapas) are referenced in the Brāhmaṇas early commentaries on the Vedas. Several seals discovered at Indus Valley Civilization) sites depict figures in positions resembling a common yoga or meditation pose, showing “a form of ritual discipline, suggesting a precursor of yoga”, according to archaeologist Gregory Possehl.Some type of connection between the Indus Valley seals and later yoga and meditation practices is speculated upon by many scholars, though there is no conclusive evidence.

Techniques for experiencing higher states of consciousness in meditation were developed by the shramanic traditions and in the Upanishadic tradition.

While there is no clear evidence for meditation in pre-Buddhist early Brahminic texts, Wynne argues that formless meditation originated in the Brahminic tradition, based on strong parallels between Upanishadic cosmological statements and the meditative goals of the two teachers of the Buddha as recorded in the early Buddhist texts. He mentions less likely possibilities as well. Having argued that the cosmological statements in the Upanishads also reflect a contemplative tradition, he argues that the Nasadiya Sukta contains evidence for a contemplative tradition, even as early as the late Rg Vedic period.

Islam

The development of Sufism was considerably influenced by Indian yogic practises, where they adapted both physical postures (asanas) and breath control (pranayama).The ancient Indian yogic text, Amritakunda, (“Pool of Nectar)” was translated into Arabic and Persian as early as the 11th century.

Malaysia’s top Islamic body in 2008 passed a fatwa, which is legally non-binding, against Muslims practicing yoga, saying it had elements of “Hindu spiritual teachings” and could lead to blasphemy and is therefore haraam. Muslim yoga teachers in Malaysia criticized the decision as “insulting”. Sisters in Islam, a women’s rights group in Malaysia, also expressed disappointment and said they would continue with their yoga classes.The fatwa states that yoga practiced only as physical exercise is permissible, but prohibits the chanting of religious mantras, and states that teachings such as uniting of a human with God is not consistent with Islamic philosophy. In a similar vein, the Council of Ulemas, an Islamic body in Indonesia, passed a fatwa banning yoga on the grounds that it contains “Hindu elements” These fatwas have, in turn, been criticized by Darul Uloom Deoband, a Deobandi Islamic seminary in India.

In May of 2009, Turkey’s head of the Directorate of Religious Affairs, Ali Bardakoğlu, discounted Yoga as a commercial venture promoting extremism- comments made in the context of Yoga practice possibly competing with and eroding participation in Islam

Christianity

In 1989, the Vatican declared that Eastern meditation practices such as Zen and yoga can “degenerate into a cult of the body.” Despite the Vatican statement, many Roman Catholics bring elements of Yoga, Buddhism, and Hinduism into their spiritual practices.

Tantra

Main article: Tantra

Tantrism is a practice that is supposed to alter the relation of its practitioners to the ordinary social, religious, and logical reality in which they live. Through Tantric practice an individual perceives reality as maya, illusion, and the individual achieves liberation from it. This particular path to salvation among the several offered by Hinduism, links Tantrism to those practices of Indian religions, such as yoga, meditation, and social renunciation, which are based on temporary or permanent withdrawal from social relationships and modes

During tantric practices and studies, the student is instructed further in meditation technique, particularly chakra meditation. This is often in a limited form in comparison with the way this kind of meditation is known and used by Tantric practitioners and yogis elsewhere, but is more elaborate than the initiate’s previous meditation. It is considered to be a kind of Kundalini Yoga for the purpose of moving the Goddess into the chakra located in the “heart,” for meditation and worship.

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Cancer

A young woman exhales cigarette smoke in Shanghai, China. The People’s Republic of China is both the world’s largest producer and largest consumer of tobacco, which has led to an impending cancer epidemic in the most populous country on Earth.

Cancer is a disease that begins as a renegade human cell over which the body has lost control. In order for the body and its organs to function properly, cell growth needs to be strictly regulated. Cancer cells, however, continue to divide and multiply at their own speed, forming abnormal lumps, or tumors. An estimated 6.7 million people currently die from cancer every year.

Not all cancers are natural-born killers. Some tumors are referred to as benign because they don’t spread elsewhere in the body. But cells of malignant tumors do invade other tissues and will continue to spread if left untreated, often leading to secondary cancers.

Cancers can start in almost any body cell, due to damage or defects in genes involved in cell division. Mutations build up over time, which is why people tend to develop cancer later in life. What actually triggers these cell changes remains unclear, but diet, lifestyle, viral infections, exposure to radiation or harmful chemicals, and inherited genes are among factors thought to affect a person’s risk of cancer.

Lung cancer is the world’s most killing cancer. It claims about 1.2 million victims a year. Most of those victims are smokers, who inhale cancer-causing substances called carcinogens with every puff. Experts say around 90 percent of lung cancer cases are due to tobacco smoking.

Breast cancer now accounts for almost one in four cancers diagnosed in women. Studies suggest the genes you inherit can affect the chances of developing the illness. A woman with an affected mother or sister is about twice as likely to develop breast cancer as a woman with no family history of the disease. Lifestyle may also have an influence, particularly in Western countries where many women are having children later. Women who first give birth after the age of 30 are thought to have a three times greater risk of breast cancer than those who became mothers in their teens.

Geographical Distinctions

There are also stark geographic differences, with incidence rates varying by as much as thirtyfold between regions. In much of Asia and South and Central America, for example, cervix cancer is the most deadly in females. However, in North America and Europe another kind of gynecological cancer, ovarian cancer, is a more serious threat.

Among males, southern and eastern Africa record the second and third highest rates of oesophageal, or gullet, cancer after China, but western and central regions of Africa have the lowest incidence in the world. Differences in diet may explain this.

Nevertheless, the reasons why many cancers develop remain elusive. Brain cancer, leukemia (blood cancer), and lymphoma (cancer of the lymph glands) are among types that still mystify scientists.

Treatments

Yet ever more people are surviving diagnosis thanks to earlier detection, better screening, and improved treatments. The three main treatment options are surgery, radiotherapy and chemotherapy. Radiotherapy, also called radiation therapy, involves blasting tumors with high-energy x-rays to shrink them and destroy cancerous cells. Chemotherapy employs cancer-killing drugs.

Even so, future cancer cases are predicted to climb, since the world’s population is aging. The proportion of people over age 60 is expected to more than double by 2050, rising from 10 percent to 22 percent. This will add an estimated 4.7 million to the cancer death toll by 2030.