Knowledge N Fact4u

How do magnets heal ? •Magnets have no healing properties. Magnetic Resonance Imaging (MRI) employs very strong magnetic fields, far stronger than a household magnet can produce, and yet MRI's have no direct effect on the health of the patient (an MRI may have an indirect effect as a diagnostic tool). •The iron in our blood is in far too low of a concentration to be affected by the weak magnetic fields of household magnets.  •Furthermore, the iron atoms in our blood are bound in heme molecules. The chemical bonds that hold the iron atom in the heme molecule interfere with the state of its electrons, causing the iron atom to lose its usual ferromagnetic properties. •The lack of healing properties for magnets has been established multiple times through controlled experiments. •For instance, M.S. Cepeda and colleagues found that static magnetic fields had no effect on pain levels. •A study performed by M.H. Pittler reviewing multiple experiments also confirmed the in...

Why don't dark-skinned people get sunburns ? •Dark-skinned people do get sunburns. While it's true that the higher pigment levels that make certain people's skin look dark helps protect against sunlight, the pigments do not block 100% of the light. •The skin pigment melanin is produced by special skin cells called melanocytes to protect the body from the damaging effects of ultraviolet light.  •Higher levels of melanin means less sunburn and less skin cancer. •But even the darkest-skinned person is not protected 100% from sunlight. •A study found that 13% of black women and 9% of black men reported getting at least one sunburn in the past year.  •Furthermore, 38% of Hispanic women and 32% of Hispanic men reported getting at least one sunburn in the past year.  •For comparison purposes, the average value across all ethnicities and genders was 50.1%. While dark-skinned people definitely get fewer sunburns, they still get them.  •When a dark-skinned person g...

Why does chocolate cause acne ? •Chocolate does not cause acne. Acne is caused by overactive sebaceous glands.  •Sebaceous glands are microscopic glands connected to the hair follicles.  •Their job is to secrete skin oil (sebum), which travels up the shaft of the hair and out onto the skin in order to waterproof the body.  •If the glands secrete too much skin oil, the channel along the hair's shaft becomes clogged.  •As a result, a buildup of skin oil and dead cells occurs in the glands and the hair follicle.  •This stagnant, clogged mass just below the skin's surface becomes infected with bacteria and turns into a pimple.  •Sebaceous glands accelerate their secretions in response to high levels of sex hormones, such as present during puberty.  •The causes of acne are therefore: 1) elevated sex hormones, 2) sebaceous glands that are overly sensitive to sex hormones, and 3) the presence of bacteria that take advan...

How do carrots help you see in the dark ? •Carrots do not help you see in the dark. Carrots do provide Vitamin A (in beta-carotene form)which is used by your body to maintain normal eyesight. •But eating excess Vitamin A does not lead to better-than-normal eyesight.  •Most Americans get sufficient Vitamin A in their diet and therefore have the best eyesight that carrots can provide.  •This myth was created by the British during World War II to hide a secret weapon, according to the book " The Invention That Changed the World " by Robert Buderi. •During the war, the British Royal Air Force had been intercepting night-time Nazi air attacks at surprisingly good rates.  •In an effort to conceal the secret weapon that was giving them such success, the British pretended their high night-time spotting rates were a result of their pilots eating large quantities of carrots.  •The real cause of their success was a then cutting-edge technology known as radar...

Pimples are one problem, which is up on several women's list of skin concerns. The problem isn't restricted to women,  Men and some teenagers are equal sufferers.  Here are 5 natural ways with which, one may keep pimples at bay.  1.FOOD TO AVOID •Avoid red meats and if you can't avoid non-veg food. Along with this, it's important to avoid certain foods.  •Say a firm no to sweets, fried foods, heavy oily and gravy dishes, chocolates, ice-creams and aerated drinks at all cost.  •Youngsters quench their thirst with colas, instead of water and their parents not saying anything at all. Never do this and if you are a parent, never allow this to happen.  •Teach your youngsters from an early age to eat green vegetables, fruits and drink plenty of water, it may be difficult at times, but believe me , they will thank you in the long run.   2.KEEP YOUR STOMACH CLEAN • Let's talk about the internal care. If you have been suffering from...