Sunscreen has a shelf life and other facts to know
Did you know sunscreen has a shelf life and can expire? Or that too much heat or cold can ruin a new bottle?
Jul 5, 2024
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Did you know sunscreen has a shelf life and can expire? Or that too much heat or cold can ruin a new bottle?
Jul 5, 2024
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Scientists have known for years that a lattice of blood vessels nourishes cells in the retina that allow us to seeābut it's been a mystery how the intricate structure is created.
May 24, 2024
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Adenosine A2A receptors (A2AR) in the nucleus accumbens of the brain play an important role in regulating sleep and motivation, but until now, no drugs have been able to selectively modulate their function without affecting ...
May 23, 2024
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A personalized mRNA vaccine to treat melanoma has now reached late-stage trials in the UK. This is just the latest step in improving the cure rate of cancer.
May 4, 2024
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Experts are working on a new type of ultraviolet light called far-UVC that could be highly effective for reducing airborne transmission of diseases such as COVID-19 and influenza--as well as surface contamination in hospitals--with ...
Apr 24, 2024
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In the realm of medical anomalies, few conditions captivate curiosity and concern quite like aquagenic urticaria, commonly known as "water allergy".
Mar 25, 2024
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Consumer watchdog Foodwatch said it was filing a legal complaint Wednesday against food giant Nestle and another group over them allegedly fraudulently treating water for their top mineral water brands.
Feb 21, 2024
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Chronic exposure of human skin to ultraviolet light causes premature aging, or photoaging. As the skin undergoes photoaging, type I collagen bundles, which are found in the dermis beneath the top layer of the skin and provide ...
Feb 14, 2024
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Sunburn is a sign that skin has experienced significant levels of damage. Ultraviolet light can change a person's DNA structure, which can lead to cancer. At the same time, choosing from the multitude of modern sunscreens ...
Dec 18, 2023
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Some children who have a common form of eczema should also be tested for allergic reactions because they may have a second allergic-type eczema, a new study suggests.
Sep 29, 2023
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Ultraviolet (UV) light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than x-rays, in the range 10 nm to 400 nm, and energies from 3 eV to 124 eV. It is so named because the spectrum consists of electromagnetic waves with frequencies higher than those that humans identify as the color violet.
UV light is found in sunlight and is emitted by electric arcs and specialized lights such as black lights. As an ionizing radiation it can cause chemical reactions, and causes many substances to glow or fluoresce. Most people are aware of the effects of UV through the painful condition of sunburn, but the UV spectrum has many other effects, both beneficial and damaging, on human health.
This text uses material from Wikipedia, licensed under CC BY-SA