Mountain climbing is one of the most difficult sports, but it can be very rewarding. Trace is here today to discuss all of the aspects of climbing.

Read More:
Into Thin Air: Mountain Climbing Kills Brain Cells
http://www.scientificamerican.com/article/brain-cells-into-thin-air/
“IN THE LATE 1890s in a laboratory atop a 4,554-meter peak in the Monta Rosa range in the Italian Alps, physiologist Angelo Mosso made the first direct observations of the effects of high altitude on the human brain: by eye and with an apparatus he designed, Mosso peeked into the skull of a man whose brain had been partly exposed in an accident, observing changes in swelling and pulsation.”

Mountain climbing without the headaches caused by altitude
http://medicalxpress.com/news/2014-04-mountain-climbing-headaches-altitude.html
“By monitoring blood flow in the brains of six climbers scaling Mount Kilimanjaro in Tanzania, German medical researchers have identified a possible way to prevent the headaches that are a common feature of altitude sickness.”

Rock Climbing, Fat Fingers and Arthritis
http://scienceblogs.com/webeasties/2013/01/22/rock-climbing-fat-fingers-and-arthritis/
“In any physical activity, there is always the risk of acute injury – cuts, scrapes, bruises, and even broken bones are often par for the course.”

What Are Calluses And How Are They Formed?
http://indianapublicmedia.org/amomentofscience/calluses/
“These extra-tough patches of skin are generally quite useful–we might even say handy–because they act like a kind of natural armor, protecting areas of skin that get an unusual amount of wear and tear.”

Your thumb and fingers don’t have ANY muscles
http://www.omgfacts.com/Science/Your-thumb-and-fingers-dont-have-ANY-mus/51215
“Our fingers themselves do not have muscles in them.”

Muscles of the Wrist and Fingers
http://www.castonline.ilstu.edu/Thomas/181/Muscles%20of%20the%20Wrist%20and%20fingers%20DT.pdf

Don’t Look Down!
http://www.psychologytoday.com/blog/darwins-subterranean-world/201311/dont-look-down
“Why are people scared of high roller coasters, air travel, and walking on the edges of cliffs?”

Fear of Heights: Do you have acrophobia?
http://www.planet-science.com/categories/over-11s/human-body/2011/02/fear-of-heights.aspx
“Are you afraid of heights? Watch this video and see what you think (but remember – don’t try this at home – even if you have access to a 1000 foot tall tower!)”

Evolutionary psychology explores ancient and newer roots of instinctual fears
http://www.washingtonpost.com/wp-dyn/content/article/2010/10/25/AR2010102503433.html
“Cars kill a lot more people than spiders, bats, snakes and wolves, but why don’t we fear them in the same visceral way?”

Watch More:
Evolution of Hands & Feet

TestTube Wild Card
http://testtube.com/dnews/dnews-333-why-are-we-ticklish?utm_source=YT&utm_medium=DNews&utm_campaign=DNWC
Why Is There Air?

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