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To 'catch' a cold or not to 'catch' a cold

Posted on 2010-09-13 08:09:18

To 'catch' a cold or not to 'catch' a cold

By: Dr. Daniel Richter

Pretty soon cold and flu season will be upon us again. Have you ever wondered why winter is considered cold and flu season? I often hear patients say they have 'caught' a cold....but from where? Where do you catch this so called 'cold'? Well, it seems a vast majority think the cold air causes you to become sick. Or, that the cold air causes one to sneeze more and the 'germs' have carried over to you. Of course I have never thought about it until I studied how the immune system of the body works. I can tell you that your body works in many wonderful ways to protect itself and a lot of what you feel of being sick is just a reaction of your defenses. Lets dive in to see what is really happening.

Your body is quite ingeniously designed. You have several defense mechanisms built in to handle any type of foreign invader. On the outside of your body your skin and hair are there for protection. There is also mucus and cilia (little tiny 'fingers' that move the mucus) in your throat that help trap and eject foreign things out of your body. Internally there are several mechanisms to help with the body's defense; the lymphatic system, special glands, white blood cells, and bone marrow. The lymphatic system is an alternate blood pathway in your body. Some of your blood goes back to the heart in your veins, some is routed through the lymphatic system. In this system, special glands or nodes exist to trap foreign things. Once they are trapped, they are attacked and eliminated by white blood cells that are specifically designed for this purpose.

In general, there are two types of immunity that your body has; humoral immunity and cellular immunity. Humoral immunity 'attacks' things floating around in the blood stream. These are typically bacteria. Cellular immunity 'attacks' things that get inside cells which typically are viruses. There are other types of invaders like parasites, fungus and yeast, but they generally are attacked and dealt with by one of both of the above methods.

Let's look at humoral immunity first. As a foreign body (e.g. bacteria) is floating around and replicating in your blood stream, certain white blood cells identify it as a foreign invader (not part of your body). They then put a marker on this foreign invader to signal other types of white blood cells (B cells) to come in and destroy it. This marker is called an antibody. The B cells that come in to destroy the foreign invader have many destructive methods; they can envelop it and digest it, they can coat it with a type of sugar causing it to not replicate and die, they can chemically 'drill holes' in it breaking it into pieces, and they can neutralize the toxins that are spewed by the invader. As this process happens, more and more antibodies (markers) and special memory B cells are being made so your body will remember how to fight this foreign invader next time it sees it. Memory B cells can live for a very long time. This is how immunity is built up.

Cellular immunity is a bit different. A foreign body (e.g. virus) can get inside an existing cell of your body. The process of this virus entering the cell leaves a marker on the surface of this cell called an antigen. The virus then uses the infested body cell to replicate itself, and thus the antigens. Another special type of white blood cell (T cell) comes in to destroy the infested body cell and the foreign body. It typically does this by drilling holes in the cell and/or breaking it apart chemically. As this process happens, your body makes lots and lots of memory T cells to prepare for future invasions. As with other memory cells, the memory T cells can live for a very long time. This is how immunity is built up for viruses. Incidentally, viruses are not living and thus cannot be 'killed'. Due to this, antibiotics have no affect on viruses.

During these immunity processes, other things are happening in your body as well. Chemicals spewed by these white blood cells usually trigger your body to raise its temperature. Viruses and bacteria do not like this warmer environment and cannot thrive in it. So, a fever is actually helping fight the bad guys. Other chemicals spewed cause malaise (feeling sick or sore). You often get tired and want to rest (also an aid to helping fight off the bad guys). Eventually as the bad guys are being defeated, less and less chemicals are released and you start to have less symptoms.

A lot of this process happens in your body without you even knowing it. A lot of the foreign invaders are killed off before they have a chance to replicate so far that they cause major symptoms. However, when your body is stressed, undernourished, run down, and/or tired, your immune system doesn't function at 100 percent. In winter, people are generally 'cooped up' inside closer to one another and bacteria and viruses transfer easier to each other. We also don't get sun exposure and thus are not making vitamin D like in the summer months and vitamin D has been linked to supporting your immune system. These may be the reasons why winter is the cold/flu season.

Please feel free to ask questions if you want clarification. We would be happy to help explain this further to you.

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Healthy School Lunches

Posted on 2010-09-07 08:44:56

It's that time of the year again where we are sending our children back to school. In doing so, that means we need to think about what our children are going to eat for lunch. Dynamic Chiropractic has a great article on health school lunches that I would like to share with you. Please read the following article written by Claudia Anrig, Chiropractor.

Dr. Carrie Brazzale

Dynamic Chiropractic – October 21, 2008, Vol. 26, Issue 22

Healthy School Lunches

By Claudia Anrig, DC

Parents today recognize the importance of feeding their children healthy, nutritious foods. The problem is

that the food the cafeteria serves and the lunches parents actually pack really do not live up to the standards

of healthy food our children should be eating. Between a busy family schedule and/or accommodating to the

whims (or whining) of their children, parents are in a constant battle to raise their kids in a healthy manner,

particularly when it comes to school lunches. Helping parents out with new ideas and giving them the

confidence to change this meal can help reinforce your support of their family and their health.

What’s Being Served?

Although programs addressing this problem have begun to appear over the past few years, the fact is that

not much has changed. The majority of entrees served on school campuses include pizza, Sloppy Joes,

cheeseburgers, hot dogs and corn dogs. Children will usually pick up the fatty foods and skip out on the

salad bar, vegetables or fresh fruit, if it happens to be provided.

The Traditional Sandwich

Commonly found in the packed lunch is the traditional sandwich; the problem is that bad choices can be

made here as well. For example, parents purchasing white bread often equate "enriched" as a healthy food

selection. They then combine it with something equally as unhealthy; peanut butter (hydrogenated oil) and

jelly (processed sugar), processed meats (chemicals) and cheeses (processed food; not even the real thing).

A better sandwich suggestion includes whole-grain breads, almond butter (and unsweetened jelly), baked or

roasted meats, and sliced vegetables. (cucumbers, red peppers, etc.) Don’t forget some sprinkles of flax

seed. Another great sandwich option is a "wrap." This can be done by purchasing whole-grain or gluten-free

tortillas and wrapping up healthier protein and vegetable sources. For instance, start with baked turkey or

chicken and add any or all of the following: cucumbers, sprouts, red peppers, hummus or a handful of beans.

These choices can definitely be considered an improvement over what most children consume during their

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lunch hour.

Perfect Packing

Part of putting together a healthy packed lunch is having the right storage containers. Be sure to use an

insulated lunch box that will hold up to four small food containers and a thermos. Recommend that families

purchase at least two sets of containers; this will help avoid having to wash them each night. As for the

thermos, be sure that it is the wide-mouthed variety, which can be used for many purposes.

The Beverage

When it comes to healthy lunches, milk (yes, it’s true - see some of my archived columns), juice and soda

should be avoided when at all possible. The American Academy of Pediatrics says that juice consumption is

contributing to cavities and gastrointestinal issues for children. The best choice is water in a stainless steel

container, which not only promotes "green," but also reduces costs.

The Entrée

Great sources of protein that can be put in a small lunch container include cubes of baked chicken, turkey or

tofu. Encourage parents to get away from processed meats and instead plan ahead for leftovers from dinner

that can be cut into bite-sized pieces and eaten as finger food. Also remember that a hard-boiled egg can be

a great source of protein.

The wide-mouthed thermos can bring great variety to an average lunch. Chili beans (another great source of

protein) with organic tortilla chips for dipping can break up a boring lunch routine. If families prepare

homemade soups and stew on weekends, this can easily steer them away from the unnecessary chemicals

and high salt content present in many store-bought brands.

The Side Dishes

One of the side dishes that we need to encourage kids to enjoy is green vegetables (snap peas, broccoli,

zucchini slices, etc.). However, don’t forget to expand the color spectrum (squashes, red and yellow bell

peppers) to include the antioxidant family. Introduce a healthy dip like hummus. You can also find very

healthy vegetable-based dips not only in whole- and health-food stores, but also in major chain stores.

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Fruit is also a great side dish, but parents should be encouraged to avoid buying fruit cups and processed

roll-ups for their children. A lunch would be much healthier by topping a sliced or chopped organic fruit

with shredded coconut or raisins, or even adding raw nuts to the mix.

Consider putting together a grain salad; for example, couscous or steamed long-grain brown rice with

chopped cucumbers, red peppers, baby carrots, or any other similar vegetable. Parents might consider

marinating chopped vegetables in a salad dressing for a few days prior to preparing the salad. Drain the

vegetables and then mix them in. This will add moisture to the salad without having to add excess dressing.

Create a Menu

No one knows better than a child what they’re going to want for lunch, so it’s important to let them actively

participate in the menu and preparation of their lunches. By including children in the menu process, they are

more likely to finish what they started. Where do parents begin? By committing to only healthy lunch

choices. This might begin by selecting a cooking/menu book for children or finding Web sites that focus on

whole/natural menus for kids.

Parents should then develop a planning board so that children can mix and match their lunch menu for the

week. Parents can buy a white board, poster board or something similar, and then draw out five columns and

label them for each day of the week. Using color-coded Post-It notes, index cards or colored paper, they can

then create a square for each lunch option. For example, protein options would be blue, vegetable options

would be green, fruits would be yellow and snacks would be pink.

During the weekend, children should select from each of the food cards and build a five-day lunch menu.

While this is being done, the entire family can begin prepackaging their lunch options that can be frozen or

stored for a few days.

In Summary

It’s important that both parents and their children address the lunch issue. If we let this meal "go to the

waste side," we are not only losing another opportunity for children to grow up healthy with the necessary

building blocks, but also missing the opportunity to teach them that each meal counts and can have great

taste appeal.

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Click here for more information about Claudia Anrig, DC.

Page printed from:

http://www.dynamicchiropractic.com/mpacms/dc/article.php?id=53460&no_paginate=true&p_friendly=true&no_b=true

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