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According to an About.com report, SPF is actually determined indoors by exposing human subjects to a light spectrum to determine how the light affects their skin.

The study said that sunscreen with an SPF of 15 filters 92 percent of UVB rays. In other words, a sunscreen with a SPF of 15, will “delay the onset of sunburn in a person who would otherwise burn in 10 minutes to burn in 150 minutes. The SPF allows a person to stay out in the sun 15 times longer.”

Unfortunately there is currently no measure of UVA absorption that has been determined. Most sunscreens offer protection from UVA and UVB rays, although the time factor that a person can stay out in the sun and not be affected by UVA rays cannot be determined like that of UVB rays.

Either way, it is extremely important to wear sunscreen of at least a SPF of 15 when you are outdoors and reapply every two- to three hours.

 

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Summer is a great season to partake in the numerous delicious seasonal fruits. Not only do these summertime fruits taste great, but they also give you many nutritional benefits.

Some fruits to enjoy before the season ends include:

Berries: the phytochemicals in blueberries, strawberries and blackberries all boost immunity, and protect against heart diseases and circulatory problems.

Peaches and Plums: full of vitamin C and beta carotene, peaches and plums help to eliminate free radicals from the body.

Pineapples: being packed with the most vitamins and minerals, pineapples are also a great digestive aid.

Papayas and Mangoes: both are an excellent source of vitamin C, vitamin A, beta carotene and fiber.

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Just like we have been cooped up all winter, so have been a number of those creatures that we've come to despise: insects.

With summer in full bloom, insects are also in full swing and are ready to attack when necessary.

So, what do you do to avoid these nasty creatures biting you?

Environmentalists suggest that the best way to deal with insect bites and stings is to prevent them before they happen.

Ways that you can avoid or prevent bug bites include:

Applying repellents to exposed skin. Do not apply repellents directly to your face, instead spray the repellent into your hands and apply to your face that way.

Wearing shoes when walking around outdoors. Avoid going barefoot whenever possible.

Do not swat or attempt to hit a flying insect. This will only make them mad and attack you more frequently.

Covering food when it is outdoors. Insects flock to food and the less chance you give them to get to the food, the greater your chance of avoiding them all together is.

Avoiding bright colored clothes when you are outdoors for extended periods of time as insects are attracted to bright colors.

Trying not to wear heavy smelling perfumes outdoors as insects are also attracted to the smells.

Keep these tips in mind before you head outdoors and you won't be dealing with insects biting or stinging you this summer.

Bug bites are going to happen now and then, but enjoy your summer while it lasts ,winter will be here before we know it!

 

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According to a report on CNN.com, “getting CPR within minutes is crucial for someone who's suffered from cardiac arrest, as brain death and permanent death start to occur just four to six minutes after the heart stops.”

Unfortunately, the report also states that more than 95 percent of cardiac arrest victims die before reaching the hospital.

But, if more people would learn CPR, then many of these deaths may not occur. Many people do not want to take the time to learn how to perform CPR, but medical experts say that learning how to do it is much easier than it used to be.

As stated on CNN.com, Dr. Kenneth Rosenfield, an interventional cardiologist at Massachusetts General Hospital, once had a patient whose life was saved because the man's quick-thinking wife knew to perform CPR to the rhythm of the song “Staying Alive”. As a result of a one minute American Heart Association spot she heard on the radio she knew to push very hard, 100 times per minute to the tune of “Staying Alive”.

According to Rosenfield, “You should take a class, but it's easier than it used to be. There's no mouth to mouth. You push on the chest very hard and don't worry about breaking a rib.”

Anyone interested in learning where they can take a CPR class, can visit either the American Red Cross or the American Heart Association to find a class in your area.

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According to Mayoclinic.com a recent report for the Alzheimer's Association predicts that 10 million baby boomers will develop Alzheimer's disease in the U.S. alone. This staggering number translates to about one out of every eight baby boomer.

While new treatments are constantly being studied and analyzed many believe that a cure will not be readily available during this lifetime. However, studies keep point to the fact that physical activity or exercise is one of the most effective ways to prevent the disease. Beyond a healthy heart and regulated body weight, studies suggest that exercise which raises your heart rate for at least 30 minutes several times a week can lower your risk for Alzheimer's. In fact, it looks as though exercise inhibits Alzheimer's-like brain changes in mice which decelerate the development of a major component of the disease.

Researchers have found that women age 65 and older who are physically active are less likely to experience a decline in mental function than inactive women. Another study was conducted by researchers at the University of Chicago in which mice, after having been bred to develop Alzheimer's type plaque in the brain were allowed to exercise while others were not. The brains in the physically active mice had 50 to 80 percent less plaque than the brains of the sedentary mice and the exercising mice produced significantly more of an enzyme in the brain that prevents plaque.

Another study completed at the University of Washington School of Medicine and Veterans Affairs Puget Sound Health Care System also tested the effects of aerobic training on 33 women and men diagnosed with mild cognitive impairment, which is often considered a precursor to Alzheimer's disease.

According to Oregonlive.com 23 of the volunteers, selected randomly, began an intense program of aerobic exercise, consisting of 45 to 60 minutes on a treadmill or stationary bike four days a week. The remaining 10, the study's control group, spent the same amount of time performing non-aerobic stretching and balance exercises.

After six months, the aerobic exercisers showed significant gains in mental agility, while the non-aerobic group showed continuing decline in tests of thinking speed, fluency with words and ability to multi-task.

Even though it still remains unknown whether exercise can prevent Alzheimer's, many scientists believe that lifestyle factors including exercise, mental stimulation and strong social connections are more likely to help in the prevention of Alzheimer's disease than any existing pharmaceuticals or supplements.