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What does SPF stand for?

At this time, the fact that you need to wear sunscreen while running while doing something outdoors is child's play. It's not like you can overcome the UV rays, right? And even if you're not out of training with a tank-top fire line, you'll expose your skin to sun damage each time you hit the asphalt.

"Random sun exposure for only 10 to 15 minutes a The day adds up over time and can cause significant sun damage and accelerated photoaging," says Dendy Engelman, a dermatology surgeon at the New Dermatology and Cosmetic Surgery Centers York City. Translation: Your outdoor cardio sessions can cause wrinkles, dark spots and sagging skin and skin cancer if you do not protect yourself.

If you are aware of the time we spend runners under the sun and excessive sweating against our sunscreen it is all the more important that we follow the basic rules for SPF: mainly ] use but also reapply as long as you are exposed to UV rays. Do not skip the ears, neck, lower lip and even the scalp, says Neal Schultz, a medical dermatologist in New York City. "These are more risky spots that runners tend to forget, and this can be a cause for concern," he says.

But protecting yourself from UV damage and skin cancer while fleeing does not have to be as boring as training an interval. It can be easy if you just bother ̵

1; here are answers to all the frequently asked questions about sunscreen, backed by experts, so you have everything you need to know to get it right.

Does a higher SPF number mean better protection? [19659006] The short answer: Yes. "We used to think that something about SPF 15 is not more effective than a lower number. Now, studies have shown that the higher the number, the better the protection, "explains Engelman. SPFs of up to 100 could have a significant effect against sun damage, according to a study published in the journal of the American Academy of Dermatology . When people on one side were treated with SPF 50 cream and on the other hand with SPF 100, 55 percent of those on the less protected side were more sunburned.

But you do not really have to stress that you're smacking something about SPF 50, Schultz adds. "Once the SPF exceeds 50, there is little extra protection." It also depends on whether you use it properly: "You need to be applied well and reapplied immediately after swimming or sweating, otherwise every two to three hours," he adds. If not, the SPF is of little importance. Whatever the number is, it will diminish.

What is the difference between a chemical sunscreen and a physical sunscreen?

Sunscreens work in two ways: they absorb UV rays or reflect them off your skin. "Chemical sunscreens absorb harmful UV energy," says Schultz. "They are the traditional sunscreen you are thinking of," he adds, consisting mainly of ingredients such as oxybenzone, octinoxate, octisalate, octocrylene, homosalate and avobenzone, or a combination thereof. These carbon-based ingredients convert the UV rays into heat and release them.

On the other hand, "mineral sunscreens sit on the skin and direct or dissipate harmful UV rays from the skin," says Engelman. Imagine the strip of white lifeguards on your nose. "They typically consist of zinc oxide or titanium dioxide," she says. While some sunscreens are better for different skin types, the choice between physical and chemical protection is a personal choice.

Traditionally, many people shy away from formulas that use a physical sieve due to the thick formula and opaque white covering of zinc oxide or titanium dioxide, but new technologies have improved this effect, and some physical formulas now feel like sheer blandness chemical versions. Try one of these sweat-resistant sunscreens that keep you covered every time you run.

Which ingredients in sun creams make my eyes sting?

Brush-Mineral Sunscreen Powder

It's not actually the active sunscreen ingredients (referred to on the back label as "active ingredients") that cause the Stinging Sensation, Schultz says, "It's the ingredients that make the Vehicle containing sunscreen ingredients, such as lotion, cream, etc. And there are an infinite number of ingredients that can cause burning or burning sensation. " Look for chemical sunscreens that contain octyl methoxycinnamate or those that contain fragrances, says Engelman, who are more likely to have tears in their eyes. You may also want to opt for a powdered formulation like Brush on Block

But can not I just sweat off the sunscreen when I start walking?

"Yes, so you need to reapply!" Say Schultz: Pay attention to oil-free and water-resistant formulas to limit the sunscreen on your skin (and especially in your eyes). "I also like powdered sunscreen – it absorbs sweat during exercise and does not feel like a thick barrier," says Engelman. "Physical sunscreens generally tend to stick better to the skin." You should apply sunscreen one hour before you go outdoors. This gives time to claim, says Engelman. And if you go for a long distance that has been going on for more than two hours since the application, be sure to use the SPF on the go. Mini sticks and travel tubes work well. You can even give yourself a second layer of protection with a hat, bodice or UPF fabric arm cuffs.

[Do You Want To Start Running?] The Great Beginner's Running Book guides you step by step through everything you need to know to get started.]

If I do not burn, I have that not really wearing sunscreen, right?

Wrong, wrong, wrong. "Sunburns are caused by UVB rays, skin cancer is caused by UVA rays, which make up the majority of UV rays," says Schultz. "Not to burn does not protect against skin cancer." In addition, sun damage from burns causes an accelerated light age, says Engleman. Translation: You will look weathered, faster. And "sun damage accumulates, even if the skin is not burned," she adds.

If it is not sunny or winter, is it okay to skip sunscreen?

No. "The UVA rays that cause skin cancer are the same throughout the year and throughout the day," says Schultz. According to the American Academy of Dermatology, even on cloudy days, up to 80 percent of the sun's harmful UV rays can penetrate your skin. Make it a habit to gather before any outdoor run, no matter what the forecast for that day looks like.

Do runners have a higher skin cancer risk than non-runners? Almost 15 years ago, a study suggested that marathoners may have an increased risk of skin cancer due to excessive sun exposure and physical activity-induced suppression of the body's immune system (which is not helped by the fact that only 56 percent have contributed) Runners claimed to regularly use sunscreen). There was not much additional research or insight into how was more of a risk runner, but it's a conclusion that makes sense.

"Anyone who spends more time in the sun than the average person is at higher risk for skin cancer than one who is not exposed to UV radiation," says Engelman. "Theoretically, someone who walks outdoors during the day will be more damaged and at higher risk for skin cancer than someone who does not spend much time outdoors." But this is not just for runners. Anyone who spends more time in the sun is more vulnerable than someone who does not – especially if he does not adequately protect his exposed skin.

What if I'm vulnerable to outbreaks?

This is no excuse to skip your SPF. "As with all other skincare products, you want to buy sunscreen products that are water-based, oil-free, acne or oily, or non-comedogenic," says Schultz. Non-comedogenic means that the sunscreen has been specially designed to keep your pores from clogging, causing irritation, pimples and blemishes.

Could wearing sunscreen while running affect my performance?

When talking about pore blocking, the runner sometimes gets stressed out. This SPF could actually slow you down by blocking your pores and causing overheating. Research has shown, however, that sunscreens have no effect on respiration, oxygen consumption, lactate levels, sweat loss, or perceived exertion. While this study dates back to 2000, newer formulas need further research. If you want to be extra careful, "buy sunscreen that is water-based, oil-free, for acne or oily skin or non-comedogenic," says Schultz – exactly what you are looking for, if you do not want to deal with outbreaks caused by sunscreen , "These products will not interfere with sweating, which is essential for thermoregulation during exercise," he says. Ashley Mateo
Ashley Mateo
Ashley Mateo is a writer and editor, marathon runner, Ironwoman and yogi and has contributed to Health, Runner World, Gestalt, Self and more.

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