Posts Tagged ‘skin cancer’
July 12th, 2020 by Dr. Hannah Sivak
That suntan that used to be fashionable (and still is in some circles) is a signal that the UV in the sunlight has damaged your DNA. Nothing to celebrate, right? Ultraviolet light is classified into three categories: UVA (315 to 400 nm), which causes tanning, UVB (medium wave, 280 to 315 nm), which causes sunburn, and UVC (short wave, germicidal, 100 to 280 nm), which is filtered out by the atmosphere and does not reach us. Incidentally, the ozone (O3) layer of the atmosphere absorbs 97–99% of the UV in the range 200 nm to 315 nm, which is why the destruction of the ozone layer by some chemicals is…
July 9th, 2020 by Dr. Hannah Sivak
There are so many reasons to take care of our sun-damaged skin. Our skin is your protection from the environment, it prevents the loss of water, damage by solar energy, penetration of noxious chemicals and infection by microorganisms, and virus. How do you recognize skin damaged skin? No need to do any hard work: any skin surface that is ever exposed to the sun is sun-damaged. Exceptions? None. It is true that dark-skinned people have some more protection given to them by some extra melanin, but that’s it: some extra protection. Not total indemnity! To understand more about the damage that UV inflicts on the skin, compare the skin of…
December 25th, 2019 by Dr. Hannah Sivak
Do men need skin care at all? YES. We “accept” men’s aged skin not because it looks or works better (than that of a woman) but because we (society) judge men by other standards than how smooth their skin is (money and power come to mind). If men do need skin care, do they need skin care especially designed for them? NO. Why do men need skin care? Because skin care is not just a matter of beauty but also health. You can’t wait until things get bad to go to a dermatologist for a lesion that may be skin cancer. You need to prevent damage and reverse skin aging…