Types of Magnets

It has now well established by systematic experiments and examinations that all the cells of our body have magnetic properties hence are good conductors of magnetic energy. Our body’s magnetism is caused by the chemical reactions that constantly take place in our body. It is, therefore, vital that the magnetic balance of our body is maintained to ensure a good health. The following are some of the reasons that adversely affect this balance:-

a) The Magnetic Deficiency Syndrome. (A term coined by Dr. Kyoichi Nakagawa in 1970s). This condition is said to be caused by the slow weakening of the Earth’s geomagnetic fields due to natural reasons. The modern man-made steel structures, vehicles, and electronic gadgets also act as barriers, reducing human exposure to the Earth's fields which further aggravates the problem. Some of the symptoms of the syndrome are Depression; anxiety; stress; perpetual tiredness; insomnia; increased aches and pains and general weakening of the immune system. As can be seen, these symptoms are not exclusive to this syndrome. A number of researches, including the ones conducted by NASA, have, nevertheless, established that if the humans are insulated from the Earth’s magnetic field for prolonged periods, it affects them physically and also affects their behaviour.

Similarly, it is said that, exposure to high electromagnetic radiation from cell phones, microwaves, power lines etc for a prolonged period of time also affects humans adversely.

b) Our Sedentary Life Style, this leads to life style diseases like diabetes; hypertension; stress etc. These ailments are said to be cured fully or, at least, mitigated by magnet therapy.

In addition, other pains related to Arthritis; menstruation; spinal deformation; fibromyalgia etc can also be considerably alleviated by this therapy.

It is very important to use magnets of the right size, shape and strength to get the desired results.
 

The strength of a magnet

A unit of Magnetic strength is called Gauss (G). 10,000 Gauss are called a Tesla.

The Earth's magnetic field is about 0.5 G and the one used for MRI is about 15,000 G (1.5 Tesla).

The magnets used for Magnet therapy, usually, have strengths between 300 to 5,000G.

To be effective, it is vital that the magnets used for therapeutic purposes are able to produce sufficiently strong magnetic waves with sufficient coverage (area of the field) at the injured spot which may be located deep inside the body. Since the Earth’s magnetic field is 0.5 Gauss, unless the effected spot is subjected to a magnetic field that is stronger than 0.5 Gauss, it will not serve any purpose. It is well known that the strength of the magnetic waves is inversely proportional to the square of the distance of the affected spot from the source. Hence it is essential to know the Effective Penetration Depth of a magnet before using it.

The gauss rating of a static (permanent) magnet depends mainly on the material it is made of and not so much on its size. Hence knowledge of the material a magnet is made of is also important.
 
The Material 

Normally Five types of materials are used for making therapeutic magnets.

a) Flexible Magnetic Rubber. This material has a gauss rating of 2500G. Depending on the thickness of the material, the surface gauss strength of the magnets made from this material may vary from 200 to 300 G.

b) Ceramic Magnets this material has a gauss rating of 4000G. The surface gauss strength of the magnets made from this material would normally vary from 800 to 1000G. The strength would depend on the size of the magnet. Ceramic magnets are most commonly used in pads, body wraps and cushions.

c) Neodymium Magnets This material has a gauss rating of 12500G. The surface gauss strength of the magnets made from this material would normally vary from 1000 to 3500G. The strength would depend on the size of the magnet. Neodymium Magnets are most commonly used for making magnetic jewellery like bracelets etc. These are also used on acupuncture points.

d) Samarium Cobalt Magnets This material has a gauss rating of 11000G. The surface gauss strength of the magnets made from this material would normally vary from 1000 to 2500G. The strength would depend on the size of the magnet. This material is very expensive, brittle and rust resistant. These magnets are commonly used in high quality jewellery.

e) Hematite Magnets This material has a gauss rating of 11000G. The surface Gauss strength of the magnets made from this material would normally vary from 1000 to 2500G. The strength would depend on the size of the magnet. Hematite has many bio-magnetic properties. Magnetic hematite beads are very commonly used in jewellery like bracelets, necklaces, belts etc.

 
Uses

The size and the shape of therapeutic magnets, also called the healing magnets, depend on the affected area as well as the method of application. Some of the commonly used shapes are

As ornaments, Like Bracelets; earrings necklaces etc.

As braces and Supports for joints

For other pains and aches

Panties Medi-mags Car Seat accessories

Shoe Insoles Pillows Mattresses