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Doctor insights on: Ultraviolet Rays

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Dr. Joshua Fox
526 doctors shared insights

Ultraviolet Rays (Overview)

Ultraviolet rays are a form of electromagnetic radiation (like light, x-rays, and microwaves) that can cause skin damage, tanning, skin cancer, and are a normal part of metabolism of vitamin D.


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Can uv rays cause damage?

Can uv rays cause damage?

Yes: Uv rays are a component of natural sunlight and are responsible for tanning. They cause with repeated exposure, skin changes and cancer later in life. They have been implicated in the development of cataracts and retinal changes in the eyes. High intensity uv can cause burns and corneal erosions (welders arc burn). ...Read more

Dr. Joshua Fox
526 doctors shared insights

Ultraviolet Rays (Overview)

Ultraviolet rays are a form of electromagnetic radiation (like light, x-rays, and microwaves) that can cause skin damage, tanning, skin cancer, and are a normal part of metabolism of vitamin D.


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What do tanning beds give off (beta rays, gamma rays, alpha rays)?

What do tanning beds give off (beta rays, gamma rays, alpha rays)?

Uv rays: Tanning beds give off uv rays at the short end of the visible spectrum. The sun also gives off such rays which causes sunburn. The tanning bed is therefore an artificial sun. The beta, alpha, & gamma rays are from radioactive sources and would be dangerous for a tanning bed and would not cause tanning anyway. ...Read more

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Can ultraviolet rays at 395-410nm be harmful to the skin?

Can ultraviolet rays at 395-410nm be harmful to the skin?

Yes: Any UV light can cause skin damage. If the exposure results in tanning then that is a sign that the skin is attempting to minimize injury. ...Read more

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Could exposure to ionizing radiation progress pkd?

Could exposure to ionizing radiation progress pkd?

Pkd and ionizing rad: Data are not clear on this. For sure, select mutations on either chromosome 16 or chromosome 4 lead to PKD expression. Scientists have long thought that a single mutation that affects polycystin expression leads to cyst formations. Newer data show that second or third or fourth mutations on these chromosomes affect expression of pkd. So, it is conceivable that yes ionizing rad could affect pkd ...Read more

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Can X rays see joint damage?

Can X rays see joint damage?

Sometimes: Depending on the degree and type of damage. Mri is much more sensitive in evaluating the joints. ...Read more

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Can gamma rays cause genetic damage?

Gamma rays: Gamma rays have very high energy and penetrate straight through your skin. They can alter your dna and lead to numerous negative effects, including cancer. ...Read more

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How can radiation exposure and uv light cause cancer?

How can radiation exposure and uv light cause cancer?

Break dna: Knock off a base (atgc -base pairs), cause a strand break, and most lethally, cause a double strand break. We have repair enzymes, but mis-repair can cause a wrong base to be inserted, or deletion of important information leading to cancer development or promotion. ...Read more

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Can "x rays films" go through airport scanners?

Yes: There is no problem as long as the film has been used to take x-rays. Unexposed film can't be scanned. ...Read more

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Does neutrogena moisturizer SPF 15 really protect you from the sun's uv rays?

Does neutrogena moisturizer SPF 15 really protect you from the sun's uv rays?

SPF: In moisturizer is helpful but it is not the same as applying sunscreen. Consider a higher spf. ...Read more

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Would radiation damage my computer?

Yes: However the dose of radiation that would damage your computer would be a hazard to you. What are the circumstances in which you might be irradiating your computer? And why? ...Read more

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Hi! What causes skin cancer uvb or uva? If uvb how could we get vitD from sun exposure if we prevent uvb rays cz they only make our skin produce vitD?

Hi! What causes skin cancer uvb or uva? If uvb how could we get vitD from sun exposure if we prevent uvb rays cz they only make our skin produce vitD?

Excellent question: You are right! We were designed to live under the sun and that is exactly how we make vitamin D in the body. Judicious exposure to sunlight is the answer. When you develop a tan, it protects you. ...Read more

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Are psoriosis phototherapy uvb lamps effective?

Are psoriosis phototherapy uvb lamps effective?

Yes it is: If used properly it is an effective therapy for psoriasis. ...Read more

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Do gamma rays kill cancer cells?

Yes. Gamma: Rays are photons, usually all of teh same energy, once produced by cobalt 60 machines, now in gamma knife units. Alpha particles are densely ionzing not very penetrating helium nuclei, and beta particles are electrons that do not penetrat. An x-ray generally produces a pectrum of energies, produced by the braking of electrons on a target of metal, like tungsten. ...Read more

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What amount sun exposure causes melanoma?

What amount sun exposure causes melanoma?

Depends On Skin Type: Melanoma is the deadliest of all skin cancers. Your risk of melanoma with sun exposure depends on your skin type. Skin that burns easily and never tans has a higher risk of developing melanoma than skin that is dark and almost never burns. As a rule, you should always wear sunscreen when exposed to the sun. Not only will that decrease your risk of melanoma, it also prevents premature aging. ...Read more

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Does bone scan process involve any exposure to radiation as in x ray?

Does bone scan process involve any exposure to radiation as in x ray?

Yes: Both x-ray an isotope for bone scan produce ionizing irradiation. Exposure from isotope of bone scan in adult is about 6 msv. This is similar to some ct scans.The only imaging methods not involving irradiation are ultrasound and magnetic resonance imaging mri. Information from each test is not the same. ...Read more