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Laughter is the Best Medicine?

Now I know, we’ve all heard time and time again “Laughter is the best medicine”, but where did this saying even come from? Is there any scientific backing to this?

Laughing child
(Picture from Pixabay.com, user Greyerbaby)

Well, turns out there is.

Dr. Lee Berk, an associate professor  at the School of Allied Health Professions at Loma Linda University, has been studying the effects of laughing, or humor, on the human body for years. In one of his experiments in the 1990’s, it was found that after watching something comedic, or funny, ones immune system created more t-cells, which are essential for fighting off infected cells in the body. Watching something funny and laughing ‘mirthfully’, as he describes it, helps to lower ones blood pressure, and improves the function of blood vessels.

It is also known that laughter releases endorphins in the body, which are neurotransmitters, responsible for the the ‘feel good’ chemicals of the body. Laughing also helps to relax muscles, and decrease pain.
YouTube Preview Image
Video: youtube user LifestyleMagazine08
Above is a video of an interview with Dr. Berk himself explaining his work, and some of his findings.

Researchers estimate that laughing 100 times is near the equivalent of using a rowing machine for 10 minutes, or an exercise bike for 15 minutes! Did you ever wonder why after a good long laugh you have trouble breathing, or your abdominal area hurts? Its because laughing is near the equivalent of an aerobic workout! Just make sure your laugh is a full and hearty one, fake and/or light laughter is not nearly as effective.

So next time you’re feeling under the weather, don’t mope about it. Pop in a funny movie and let your laughter help heal you!

-Christina Bell

Fire rainbows – not really a rainbow on fire

A fire rainbow, via deviantART user: ~daslasher1 For more pictures from ~daslasher1, click here.

I’m sure we all have seen rainbows after the rain and rosy-hued clouds during the sunset. The rainbows and the sunsets can make beautiful sceneries, but if the two phenomena could happen at once, wouldn’t it be twice as beautiful?

A 22° halo, via wikimedia commons user: Andrzej Barabasz

Indeed, such phenomenon does occur. It is better known to the public as the “fire rainbow,” than its actual name, the “circumhorizontal (or circumhorizon) arc.” Although it is called a fire rainbow, it is neither a rainbow nor is related to fire. It is really a halo that is made by ice crystals in the cloud refracting the sunlight. The circumhorizontal arcs are unlike common halos (22° halos). Whereas 22° halos are seen fairly close to the sun, circumhorizontal arcs form much further, closer and parallel to the horizon. In addition, to observe, the circumhorizontal arc requires specific angles of the sun and a specific kind of cloud.

cirrus cloud, via wikimedia commons user: Saperaud

Firstly, there need to be cirrus clouds.  Cirrus clouds form more than 6000m high, and contain ice crystals in which sunlight is refracted. The arc is brighter if the cloud is thicker, since more crystals will refract more sunlight. Secondly, the sun must be higher than 58°. Such height of the sun is possible only between latitudes 55°N and 55°S. It is impossible to see the circumhorizon arc outside of these latitudes, because the sun will never rise high enough. Fortunately, the latitude of Vancouver is 49°N. This link (click here) shows a graph of months in a year when circumhorizontal arcs can be formed. In Seattle, the arcs may be observed from mid-April through mid-August. Since Vancouver is just north of Seattle, there won’t be much difference.

So, during the summer when the sun is at its highest and if there are some cirrus clouds in the sky, be sure to look around! You may be able to witness a beautiful fire rainbow as these seen in New BrunswickSeattle (and another), and Toronto.