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Vol 276 No 7397 p480-481
22 April 2006

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The resurgence of magnetic therapy

Since March, a magnetic device for leg ulcers has been available on the NHS. Bill Jackson looks at the history of using magnets in health


Bill Jackson, FRPharmS, is a retired pharmacist and a past president of the British Society of the History of Pharmacy

The 4Ulcercare leg ulcer wrap

The 4Ulcercare leg ulcer wrap

Now that I am no longer in the first flush of youth I have observed an increase in the number of pamphlets delivered by the postman, urging me to buy sanitary underwear, incontinence pads, portable urinals, crutches, folding walking sticks and invalid chairs. Other offers have included air cushions, knee supports, magnifiers, hearing aids, devices to aid entering or leaving the bath, or to exercise my legs while remaining seated in an armchair, support stockings, copper bracelets for rheumatism, and, more recently, fabric joint supports which contain copper thread to “support and insulate the joint with gentle warmth and comfort”.

Magnetic jewellery

Recently I have noticed an increase in the number of appliances that claim to possess therapeutic properties due to the action of magnets incorporated in them. These include two different types of magnetic haematite bracelet and a watch, with a quartz movement in an expandable bronzed bracelet set with semi-precious stones and magnetic haematite. Another leaflet illustrates a “magnetic Tibetan bracelet” made from 20 haematite pearls and one smoked glass pearl with brass and crystal trimmings, which would provide soothing magnetic therapy. The secret of this bracelet is said to be based on a 4,000-year old science used in traditional Chinese medicine. This device is also supposed to bring the wearer good luck.

Another piece of jewellery is a gold-plated necklace (which should, preferably, be worn next to the skin) containing seven “rare earth cobalt” type magnets, each of which produce a 400 gauss magnetic field. The advertisement observes that although the effects of magnetism remain a mystery many people believe that it is useful for correcting imbalances (presumably a reference to humoral medicine), improving the circulation and combating stress and fatigue. Another magnetic bracelet that is suitable for both men and women, made from “chromium metal” plated with 18 carat gold, contains five magnets, which would be in direct contact with the skin when worn.

My memory was stimulated by these advertisements and I rummaged through my collection of curios to unearth a “magnetic ear clip”, which I had purchased some years ago. This was designed to be clipped to the lobe of the ear (the left one for a right-handed person and the right for anybody who is left-handed). The purpose was to exert a magnetic influence on one of the acupuncture points in the ear, thereby reducing the wearer’s appetite, and so helping to reduce his or her weight. If one was seized with a wild desire to have a snack, the clip should be squeezed or rubbed to help to combat this. It should be worn for one hour, three times a day before meal-times and for an hour before bedtime. The purchaser was warned, however, that the ear clip would not perform miracles — it was only an aid to assist in dieting, and more exercise would be helpful.

Magnetic therapy in times past

The references to ancient therapies raised the question of how prevalent the use of magnetism as a curative agent had been throughout the ages. In “Chronicles of pharmacy” A. C. Wootton observed that the in the first part of the sixth century AD, Aetius recommended holding a magnet in the hand to relieve gout. In the 15th and 16th centuries, magnetism was used to treat toothache, headache, convulsions and nerve disorders, and towards the end of the 17th century magnetic tooth-picks and earpicks were available to prevent or alleviate pain in those areas.

In New England at this time, Thomas Palmer, who acted as both preacher and doctor, was compiling a manuscript notebook of remedies. One of the cures he suggested for a rupture or hernia was:

“Or beat a load stone into fine powder and give it in pap, and annoint the groines with hony, and then strew it over with fine filings of Iron. Let this Medicine be used for 10 or 12 dayes, the patient being well trussed up.”

Loadstone (or lodestone) is magnetite, a naturally occurring magnetic iron ore, and the theory was that the iron filings adhering to the abdomen would be magnetically attracted by this, and would be drawn up, thereby reducing the rupture. Unfortunately, a Dr Gilbert of Colchester had observed, in 1660, that when it was powdered loadstone lost its magnetic properties.

Before this, in 1641 an Irishman, Valentine Greatrakes, joined Cromwell’s army and was inspired by a dream to offer his services as a healer. His method was to stroke the affected parts with an iron bar that had been magnetised. His success was confirmed by men of education and distinction, but the cures were only transitory, and the number of people who came to him for treatment gradually declined, until, finally, he retired.

In the early 1770s, a Jesuit priest known as Father Hell gained a reputation for curing people by applying plates of magnetised steel to their bodies and, in 1774, Franz Anton Mesmer established his pseudo-science of “animal magnetism”. This originally took the form of group therapy in which the patients sat round a tub containing “magnetised water”. Iron rods protruded from the tub and the patients grasped them and held them close to the afflicted parts of their bodies. Some of them were cured by means of a convulsive fit, while others fell into a hypnotic trance. Mesmer was forced to leave both Vienna and then Paris, condemned as a charlatan, but mesmerism was practised in London without any constraint. However, eventually he reached the conclusion that the value of the treatment lay, not in the power of magnetism, but in that of the operator.

James Graham was a remarkable man who was born in Edinburgh in 1745, studied medicine there (though he never qualified) and later practised in England and then America where he made a great deal of money. On his return to London he established a “Temple of health and hymen” where one of his scantily clad assistants was 16-year-old Emma Lyons, who later became Lady Hamilton, and subsequently Nelson’s mistress. Graham is now remembered chiefly for his “celestial bed”. This was 12 feet long and nine feet wide, supported by 40 glass pillars. It was activated by about 15cwt of compound magnets. The bed could be tilted to aid impregnation, and for a fee of 50 guineas a couple who wished to conceive could spend the night in it, to the accompaniment of music. In 1783, Graham returned to Edinburgh, but by 1788 he developed signs of insanity and had to be restrained. He died six years later.

Advertisement for magnetic corsets

Advertisement for magnetic corsets invented by Cornelius Harness

In 1891, Cornelius Bennett Harness took out a patent for “Improvements relating to corsets”. This related primarily to “electric corsets” but also made provision for “magnetic corsets”. The magnets described in the patent could be of any convenient form of magnetised steel, and were usually horse shoe shaped or straight, and placed in pockets whose position could be varied as required. The magnets could even be used as corset stiffeners instead of the usual ones made from whalebone. In addition to making the most awkward figure graceful and elegant, they were said to aid the chest in its development and to strengthen the internal organs. Testimonials from a number of ladies endorsed their value in treating rheumatism, nervous depression, loss of appetite and insomnia. The corsets retailed at 5s.6d. post free, or 10s.6d. for two, and must have been jolly good value at this price because those supplied by other makers at this time seem to have varied from 10s.6d to 52s.6d. each, with the exception of “Brown’s patent dermathistic corset”, which was available in all colours for 5s.11d.

Thus we see that although the value of magnetism as a therapeutic agent has been a constantly recurring theme for some two thousand years, each treatment has, in turn, been abandoned.

Magnetic therapy today

Now it would appear that magnetic cures are staging another comeback. In addition to magnetic jewellery, another product advertised recently was a cervical collar made from foam covered with jersey (a fine wool yarn) which could be used to alleviate neck pain. It contained nine magnets, could be adjusted by means of a hook and loop tape fastener and could be worn without discomfort. The retail price was £6.99.

Further investigation revealed that one American supplier was offering magnetic mattresses, pillows, magnetic wraps for the ankle, back, legs, arms, shoulder, body, elbow, knee, chest or abdomen, neck, thumb and wrist, as well as shoe inserts (powerstride, premium and supreme), magnetic seats for the home, office or car and a magnetic cushion. Also available were 4" x 6" x 0.5" ceramic magnets weighing two pounds each, costing $30. Their gauss rating was 3,950 and they could penetrate up to 12 inches. These were supplied in padded bags and could be placed under pillows, mattresses, seat cushions and pet beds or against a headboard. They could also be used to magnetise water by placing one under a glass or pitcher of it. Finally, they produced a cordless magnetic massager. This had the advantage of being portable and working more quickly because a moving magnet has greater penetration than a static one. It was powered by a lithium ion rechargeable battery and held a spinning neodymium magnet with a gauss rating of 12,300 — surely a bargain at $125.99.

Another catalogue arrived this week which contained an advertisement for a “shoulder pad with magnets”, containing no fewer than 15 “strategically placed sewn-in magnets”.

Magnetic therapy on the NHS

Now we learn that the 4Ulcercare device, said to be more effective than conventional treatments in healing ulcers, has been available on the NHS since 1 March (see Panel) It has been claimed that this will result in a considerable saving to the NHS. Privately, the wrap retails at £29 (plus postage), but will be supplied for NHS use at £13. This device is marketed by Magnopulse, which supplies a number of other products, including arm wraps, leather wrist bands, and “Ladycare”, a small magnetic device which can be attached to underwear to alleviate dysmenorrhoea. They also produce a wide range of products for animals.

Magnetic fields are said to stimulate the circulation, enhance the natural process of healing and increase the oxygen levels as well as decreasing the levels of toxins in the blood. A number of trials have been carried out to test the 4Ulcercare device, the results of which appear to be encouraging. However, we should remember that many people were prepared to testify to the efficacy of the treatments of Greatrakes, Graham, Mesmer and Harness. Possibly, any improvement is due to a placebo effect, but does this matter if good results are achieved at a moderate cost?

Perhaps the deciding factor could be that Cherie Blair, Bill Clinton and Sir Anthony Hopkins are reported to be interested in magnetic therapy. I am sure that time will settle the question of whether this therapy will prove to be good value for money.

2006: Leg ulcers and the first magnetic device available on the NHS

Leg ulcers mainly tend to affect the elderly, and most pharmacists will have come across a patient with a chronic leg ulcer. Such ulcers have to be kept clean and dressings are changed once a week. Large or heavily exudating wounds require more frequent dressing changes and it has been estimated that up to 50 per cent of community nurses’ time is spent dressing ulcers.

About 70–80 per cent of leg ulcers are venous ulcers. These are caused by high blood pressure in the veins in the legs (due to the impaired function of the valves in those veins) and occur between the ankle and mid-calf. The main treatment for venous ulcers is compression therapy using a graduated multi-layer high compression system (eg, a four-layer compression bandage).

Up to 20 per cent of leg ulcers are arterial. Poor blood circulation (eg, as in peripheral vascular disease) can result in tissue ischaemia and necrosis. Arterial ulcers typically occur over the toes or bony parts of the feet and are generally more painful than venous ulcers. They should not usually be treated with compression, so it is important that all patients are properly assessed. Treatment may involve vascular surgery to improve peripheral blood flow.

Leg ulcers are associated with diabetes and rheumatoid arthritis. Diabetic ulcers can have both venous and arterial components.

Magnetic therapy Magnetic therapy for leg ulcers can now be prescribed on the NHS in the form of 4Ulcercare. This is a magnet-containing device designed to be wrapped around the leg. It is worn next to the skin, between the knee and the calf muscle. According to the manufacturer, the device should be worn 24 hours a day, and once the ulcer has healed, the device should be worn at night to prevent the ulcer recurring.

In a double-blind study,1 26 patients with chronic leg ulcers used either 4Ulcercare or placebo for 12 weeks and their wounds were assessed every four weeks. The patients using the magnetic device had reduced ulcer measurements compared with the control group.

The manufacturer suggests the device works by:

· Promoting part of the tissue healing mechanism (when soft tissue is injured it generates small electrical currents and magnets might affect these currents)

· Increasing the proliferation of connective tissue cells

· Improving blood circulation

Lin-Nam Wang

1. Eccles NK, Hollinworth H. A pilot study to determine whether a static magnetic device can promote chronic leg ulcer healing. Journal of Wound Care 2005;14:64–7.

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