The Dept of Health and Human Services ran an article on HHS.gov about backpacks.This is what they want you to know about children and adults using backpacks.

Backpacks are a better option than shoulder or messenger bags for carrying books and supplies because the weight of the pack is evenly distributed across your body. However, backpacks that are overloaded or not used properly can make for health problems.

How Can Backpacks Cause Problems?

People who carry heavy backpacks sometimes lean forward. Over time, this can cause the shoulders to become rounded and the upper back to become curved. Because of the heavy weight, there’s a chance of developing shoulder, neck, and back pain.

If you wear your backpack over just one shoulder, or carry your books in a messenger bag, you may end up leaning to one side to offset the extra weight. You might develop lower and upper back pain and strain your shoulders and neck.

Not using a backpack properly can lead to poor posture.

Carrying a heavy pack increases the risk of falling, particularly on stairs or other places where the backpack puts the wearer off balance.

People who carry large packs often aren’t aware of how much space the packs take up and can hit others with their packs when turning around or moving through tight spaces, such as the aisles of the school bus. Students also are injured when they trip over large packs or the packs fall on them.

How Do You Know If a Backpack Is a Problem?

You may need to put less in your pack or carry it differently if:

• you have to struggle to get your backpack on or off
• you have to lean forward to carry your pack
• you have back pain

If you adjust the weight or the way you carry your pack but still have back pain or numbness or weakness in your arms or legs, talk to your doctor.

Tips for Choosing and Using Backpacks

• Consider the construction. Before you grab that new bag off the rack, make sure it’s got two padded straps that go over your shoulders. The wider the straps, the better. A backpack with a metal frame like the ones hikers use may give you more support (although many lockers aren’t big enough to hold this kind of pack).
• Carry it well. Before you load your backpack, adjust the straps so the pack sits close to your back. If the pack bumps against your lower back or your butt when you walk, the straps are probably too long. Always pack your backpack with the heaviest items closest to your back. Don’t drop all your stuff in the main compartment (using the side pockets will distribute the weight more evenly).
• Try a pack with wheels. Lots of kids use these as an alternative to backpacks, but there are guidelines and considerations to keep in mind with this kind of pack, too. Many schools don’t allow rolling packs because people can trip over them in the halls.
• Limit your load. Doctors and physical therapists recommend that people carry no more than 10% to 15% of their body weight in their packs. This means that if you weigh 120 pounds, your backpack should weigh no more than 12 to 18 pounds. Choosing a lightweight backpack can get you off to a good start. Use your bathroom scale to weigh your backpack and get an idea of what the proper weight for you feels like.
• Pick it up properly. As with any heavy weight, you should bend at the knees when lifting a backpack to your shoulders.

 The September 2014 edition of the Centers for Disease Control (CDC) Vital Signs focuses on the amount of sodium in children’s diets.

Reducing Sodium in Children’s Diets

Nearly 9 in 10 US children eat more sodium than recommended, and about 1 in 6 children has raised blood pressure, which is a major risk factor for heart disease and stroke. Lowering sodium in children’s diets today can help prevent heart disease tomorrow. Small changes make a big impact on your child’s daily sodium intake. Learn more in the current CDC Vital Signs.

Sources of Sodium

Americans get most of their daily sodium—more than 75%—from processed and restaurant foods.² What is processed food?

Sodium is already in processed and restaurant foods when you purchase them, which makes it difficult to reduce daily sodium intake on your own. Although it is wise to limit your use of added table salt while cooking and at the table, only a small amount of the sodium we consume each day comes from the salt shaker.

Dietary Guidelines for Sodium and Potassium

The Dietary Guidelines for Americans, 2010[PDF-2.9M] recommend that everyone age 2 and up should consume less than 2,300 milligrams (mg) of sodium each day. Some groups of people should further limit sodium intake to 1,500 mg per day, including:

• Adults age 51 or older.
• All African Americans.
• Anyone who has high blood pressure, diabetes, or chronic kidney disease.

Those groups add up to about half of the U.S. population and the majority of adults.

The Dietary Guidelines for Americans also recommend meeting the potassium recommendation (4,700 mg per day). Higher potassium intake can help lower blood pressure. Foods that are high in potassium and low in sodium include bananas, potatoes, yogurt, and dry beans, among others. The U.S. Department of Agriculture’s Sodium and Potassium fact sheet[PDF-153K] has more information about the role of potassium in a healthy diet and a list of foods rich in potassium.

Nearly everyone benefits from lower sodium intake. Learn more about sodium in your diet in Where’s the Sodium?, a February 2012 report from CDC Vital Signs.

Given all the concerns about drinking sugary beverages, let’s take a look at who is consuming diet drinks across the U. S.

The following information, posted by the Centers for Disease Control , comes from the National Health and Nutrition Examination Survey, 2009-2010 describes the consumption of diet beverages among the U.S. population during 2009-2010 by sex, age, race and ethnicity, and income, and details trends in diet drink consumption from 1999-2000 through 2009-2010.

About 20% of the U.S. population aged 2 years and over consumed diet drinks on a given day during 2009-2010. The percentage consuming diet drinks was similar for females and males at all ages except among adolescents aged 12-19. The percentage consuming diet drinks increased with age for both males and females. On a given day, about 3% consumed some but no more than 8 fluid ounces (fl oz) of diet drinks, and 11% consumed 16 fluid ounces or more.

Although 15.3% of non-Hispanic white children and adolescents consumed diet drinks, only 6.8% of non-Hispanic black and 7.5% of Hispanic children and adolescents consumed any diet drink on a given day during 2009-2010. Similarly, 27.9% of non-Hispanic white adults consumed any diet drink on a given day compared with 10.1% of non-Hispanic black and 14.1% of Hispanic adults.

The percentage of higher-income persons who consumed diet drinks on a given day was greater than that of lower-income persons. A total of 18.3% of children and adolescents living in households with income at or above 350% of the poverty line consumed diet drinks, compared with 11.5% of those living between 130% and 350% of the poverty line, and 8.0% of those living below 130% of the poverty line. A similar pattern was observed for adults: Although 32.6% of adults living at or above 350% of the poverty line consumed diet drinks, only 20.1% of those living between 130% and 350% of the poverty line, and 12.2% of those living below 130% of the poverty line, consumed diet drinks.

Summary:

Overall, the percentage consuming diet drinks was higher among females compared with males. Diet drink consumption differed by age, race and ethnicity, and income. For example, the percentage of non-Hispanic white children and adults who consumed diet drinks was higher than those for non-Hispanic black and Hispanic children and adults, and the percentage of higher-income persons who consumed diet drinks was higher than that for lower-income persons.

The percentage of females and males who consumed diet drinks increased between 1999 and 2010 and was mirrored by a decrease in consumption of added sugar calories in regular soda over a similar time period. These results suggest that sugar drinks may have been replaced with diet drinks during that time.

Although substituting sugar drinks with diet drinks may promote weight loss in the short term it is unclear if long-term consumption leads to weight loss, weight maintenance, or even weight gain.

With summer comes the need to be aware of the places that snakes usually inhabit.

The University of Alabama at Birmingham recently treated its first snakebite case of the season, noted Dr. Janyce Sanford, chair of the university’s department of emergency medicine.

“That is a usual pattern. As soon as the weather starts to warm up, snakes begin to get active and we begin seeing a bite or two. Still, we only see a few each spring, and people have a much greater chance of being stung by a bee or wasp or being bitten by a tick than being bitten by a snake,” Sanford said in a university news release.

If you’re in the woods or near rivers and creeks, keep an eye out for snakes and wear boots and long pants, she warned. It’s also a good idea to carry a cellphone.

“Get to an emergency department as quickly as you safely can, and that can often be accomplished by calling 911,” Sanford said. “Snap a picture of the snake with the cell phone if possible, but leave the snake behind. The last thing we need in a crowded emergency room is a snake, dead or alive.”

Emergency doctors do not need to see the snake that caused the bite. A large number of bites are dry — with no venom injected — or are from nonpoisonous snakes, Sanford noted. By monitoring the wound for a few hours, doctors can tell if venom is present, and appropriate antivenin can then be given to the patient.

Most bites by snakes are not fatal. Those at higher risk include the elderly, very young children and people with underlying medical problems”, Sanford said.

More information:

The U.S. National Library of Medicine has more about snakebites.

SOURCE: University of Alabama at Birmingham, news release, April 24, 2014

Many of us use sugar substitutes on a regular basis. Which ones are the safest?  The following is a Food and Drug Administration (FDA) release on the status of sugar substitutes.

Release…May 19, 2014

Whether it’s to cut down on the number of calories they consume or any of a variety of other reasons, some people use sugar substitutes – also called high-intensity sweeteners – to sweeten and add flavor to their foods. They can be used alone to sweeten foods and beverages such as iced tea or coffee, or as an ingredient in other products. There are a number of sugar substitutes on the market from which to choose.

“Sugar substitutes are called ‘high-intensity’ because small amounts pack a large punch when it comes to sweetness,” says Captain Andrew Zajac, U.S. Public Health Service (USPHS), director of the Division of Petition Review at the Food and Drug Administration (FDA). According to Zajac, unlike sweeteners such as sugar, honey, or molasses, high-intensity sweeteners add few or no calories to the foods they flavor. Also, high-intensity sweeteners generally do not raise blood sugar levels.

The FDA has approved a new high-intensity sweetener called advantame.

Advantame—which does not yet have a brand name (such as Sweet’N Low, a brand name for saccharin, or Equal, a brand name for aspartame)—has been approved as a new food additive for use as a sweetener and flavor enhancer in foods, except meat and poultry.

Examples of uses for which advantame has been approved include baked goods, non-alcoholic beverages (including soft drinks), chewing gum, confections and frostings, frozen desserts, gelatins and puddings, jams and jellies, processed fruits and fruit juices, toppings, and syrups.

How Do You Know it’s  Safe?

FDA is required by law to review all new food additives for safety before they can go on the market. The process begins when a company submits a food additive petition to FDA seeking approval. One exception is for substances “generally recognized as safe,” or GRAS, because those substances are generally recognized by qualified experts as safe under the conditions of intended use and are exempt from the food additive approval process.

Zajac explains that the agency’s scientists thoroughly review all the scientific evidence submitted by a company to ensure the product is safe for the intended use.

“In determining the safety of advantame, FDA reviewed data from 37 animal and human studies designed to identify possible toxic (harmful) effects, including effects on the immune, reproductive and developmental, and nervous systems,” Zajac says.

Advantame is chemically related to aspartame, and certain individuals should avoid or restrict the use of aspartame. To that end, FDA evaluated whether the same individuals should avoid or restrict advantame, as well.

People who have phenylketonuria (PKU), a rare genetic disorder, have a difficult time metabolizing phenylalanine, a component of both aspartame and advantame. Newborns are tested for PKU using a common “heel-prick” test before they leave the hospital.

Foods containing aspartame must bear an information statement for people with PKU alerting them about the presence of phenylalanine. But advantame is much sweeter than aspartame, so only a very small amount needs to be used to reach the same level of sweetness. As a result, foods containing advantame do not need to bear that statement.

Five Sugar Substitutes Already on the Market:

The last high-intensity sweetener approved by FDA was Neotame (brand name Newtame) in 2002. The other four on the market, and are:

• Saccharin, was first discovered and used in 1879, before the current food additive approval process came into effect in 1958. Brand names include Sweet‘N Low

• Aspartame, first approved for use in 1981. Brand names include Equal

• Acesulfame potassium (Ace-K), first approved for use in 1988. Brand names include Sweet One

• Sucralose, first approved for use in 1998. Brand name is Splenda

In addition to the six sugar substitutes ( high-intensity sweeteners) that are FDA-approved as food additives, the agency has received and has not questioned GRAS notices for two types of plant/fruit based high-intensity sweeteners: certain steviol glycosides obtained from the leaves of the stevia plant (Stevia rebaudiana (Bertoni) Bertoni) and extracts obtained from Siraitia grosvenorii Swingle fruit, also known as Luo Han Guo or monk fruit.

While these sugar substitutes (high-intensity sweeteners) are considered safe for their intended uses, certain individuals may have a particular sensitivity or adverse reaction to any food substance. Consumers should share with their health care provider any concerns they have about a negative food reaction.

In addition, FDA encourages consumers to report any adverse events through MedWatch: FDA’s safety information and adverse event reporting program.

This article appears on FDA’s Consumer Updates page, which features the latest on all FDA-regulated products.