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6 simple self defense moves every woman should know
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Would you know what to do if someone attacked you? - photo by McKenna Park
Knowing self-defense can be the difference between life and death and between getting kidnapped and getting away. The ability to defend yourself against an attacker is a critical skill all women should have. And the good news is, you dont have to be a master of jiu-jitsu or krav maga to be prepared for the worst.

When you have a sense of what you could do in the event that you were attacked and believe you could do something to help yourself, the likelihood that you'll actually do something increases," says Kelly Campbell, a third-degree black belt and director of instructor development for Krav Maga Worldwide.

Some women worry they wouldnt be able to carry out the steps in self-defense moves perfectly right. Campbell gives us a good reminder that aggression can go a long way toward making up for technical proficiency. So even if you don't know these moves perfectly, knowing and performing them with strength can make up the difference.

Here are six simple self-defense moves to have in your tool belt.

1. Straight Punch

When a dangerous figure approaches, there are several simple moves to do before he gets too close to you. An easy, instinctive move is a straight punch. Now, typically a woman would not be able to win a boxing match with a male attacker but remember that all rules are thrown out in this situation. In fact, you want to go against the rules as much as possible. Punch his most vulnerable facial areas his eyes, nose, throat and ears. Avoid wasting energy on punching his chest, stomach or arms.

2. Front kick

Another useful and basic move to defend yourself against an oncoming attacker is a front kick. Steady your feet in a solid stance and aim for his groin. Kick in an upward motion and make contact with his groin area with your shoelaces or the top of your shoe (not the toes). Dont give your attacker the opportunity to grab your foot; pull it back as quickly as possible and prepare for another kick.

3. Eye jabs

Another effective move to ward off an approaching attacker is an eye jab. With slightly curved fingers, repeatedly jab the offender in the eyeballs. Dont be afraid to use your fingernails. Repeatedly jab and gouge relentlessly until you feel you can run away safely. If he blocks your jabs, switch to front kicks to his groin, and alternate between the two.

4. Knee kick

If your attacker has gotten too close to your body to allow for punches, kicks or eye jabs, use your knee. Plant one leg back and thrust your knee up into is groin area. Aim to make contact with the bony part of your knee instead of the top of your thigh. This will cause much more pain to your attacker.

5. Bear hug defense

An assault from behind can be especially scary, but dont worry theres a simple way to defend yourself if you are grabbed. Your first instinct might be to grab his arms and pry open his grip. This is usually ineffective and wastes crucial time and energy. Instead, make yourself as small as possible, tucking your arms at your sides, squirm and drop low. Changing your center of gravity to a lower point will make it much more difficult for him to lift you up, and you have a better chance escaping his hold by lowering yourself away from his arms.

6. Choking defense

One of the most dangerous way your attacker can assault you is choking your neck. With his thumbs pressing on your windpipe and high pressure and both sides of your throat, you only have seconds to respond before blacking out. Luckily, theres a quick and easy way to escape a chokehold. Lift your arms up high, clasping your hands together, and break down across his hold. He is helpless to stop your downward strike with both his hands busy at your throat. Remember arms up, break down.

Fitness expert Jeff Haleny emphasizes that just reading about the moves is not going to cut it.

What you really want to do is just get good at one of the moves and stick to that move, Haleny said. Drill it over and over and over. It needs to really be reflexive.

In other words, practice makes perfect. And in this case, practice could save your life. So on your own or with a friend, practice the steps to these moves repeatedly. Then, if an attacker does assault you in the future, you wont need to hesitate and think the self defense moves will be an automatic reflex, and youll be able to escape.
Its toxic: New study says blue light from tech devices can speed up blindness
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A new study from the University of Toledo found that blue light from digital devices can transform molecules in your eyes retina into cell killers. - photo by Herb Scribner
It turns out checking Twitter or Facebook before bed is bad for your health.

A new study from the University of Toledo found that blue light from digital devices can transform molecules in your eyes retina into cell killers.

That process can lead to age-related macular degeneration, which is a leading cause of blindness in the United States, according to the researchs extract.

Blue light is a common issue for many modern Americans. Blue light is emitted from screens, most notably at night, causing sleep loss, eye strain and a number of other issues.

Dr. Ajith Karunarathne, assistant professor in the UT Department of Chemistry and Biochemistry, said our constant exposure to blue light cant be blocked by the lens or cornea.

"It's no secret that blue light harms our vision by damaging the eye's retina. Our experiments explain how this happens, and we hope this leads to therapies that slow macular degeneration, such as a new kind of eye drop, he said.

Macular degeneration is an incurable eye disease that often affects those in their 50s or 60s. It occurs after the death of photoreceptor cells in the retina. Those cells need retinal to sense light and help signal the brain.

The research team found blue light exposure created poisonous chemical molecules that killed photoreceptor cells

"It's toxic. If you shine blue light on retinal, the retinal kills photoreceptor cells as the signaling molecule on the membrane dissolves," said Kasun Ratnayake, a Ph.D. student researcher working in Karunarathne's cellular photo chemistry group. "Photoreceptor cells do not regenerate in the eye. When they're dead, they're dead for good."

However, the researchers found a molecule called alpha-tocopherol, which comes from Vitamin E, can help prevent cell death, according to Futurism.

The researchers plan to review how light from TVs, cellphones and tablet screens affect the eyes as well.

"If you look at the amount of light coming out of your cellphone, it's not great but it seems tolerable," said Dr. John Payton, visiting assistant professor in the UT Department of Chemistry and Biochemistry. "Some cellphone companies are adding blue-light filters to the screens, and I think that is a good idea."

Indeed, Apple released a Night Shift mode two years ago to help quell blue lights strain on the eyes, according to The Verge. The screen will dim into a warmer, orange light that will cause less stress on the eyes.