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Sunscreens and conception
Sunscreen is the accessory to wear these days. UVA and UVB rays have become the biggest evil, and we must guard against them!
But what about our sunscreens? Are they completely safe? Or are they perhaps as bad for us as the sun at high noon?
Let's talk about UVA and UVB rays for a moment. I think everybody knows that two types of sun rays exist, but they don't always know the difference. UVA is more prevalent before 10 am and after 4 pm, and it penetrates more deeply. It also can go through glass, so you're getting exposure through a car window.
UVB rays are most strong between 10 am and 4 pm during April to October. They don't go through glass, and they don't go as deeply into skin either. The good news about UVB is that this type of ray is what causes Vitamin D production, so a daily dose of some UVB is good for you. A lot of it, of course, causes sunburn and the damage that goes along with it.
Physical sunscreens like zinc oxide and titanium dioxide block both UVA and UVB rays. They just sit on the skin and block the penetration of the sun. Chemical sunscreens, however, absorb the rays.
While many people don't like the physical sunscreens because they are typically thicker and leave a white film, the chemical sunscreens may be worse for you, especially if you are trying to conceive.
Many of the chemical sunscreens contain ingredients that are hormone-disrupters or even flat-out estrogenic. Excess estrogen may be the culprit behind the rising incidence of endometriosis and fibroids, both of which can affect your ability to conceive.
Some of the ingredients to avoid are:
In addition to being estrogenic, these ingredients cause more free radicals to be made in your body, and I've discussed before how free radicals damage your fragile reproductive cells.
But it's also disturbing that this chemical exposure can affect a developing fetus, leading to birth defects like undescended testes in boys.
Interestingly, countries where sunscreen use is the highest have seen an increase in skin cancers. A couple reasons for this include decreased Vitamin D and increased internal damage from the sunscreens.
And to top it all off, sunscreens usually contain preservatives that are also estrogenic! The answer is to get a little bit of sun exposure, but don't get burned, and for longer time in the sun, use a physical sunscreen.
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