ABOUT LIFE SCIENCE

Crazy Facts

The human body is composed of about 100 trillion cells, but only about a tenth of those cells are human.

1.

Fortunately, most of these microbes actually support good health and keep you alive.

The other 9 out of10 cells come from viruses, bacteria, and other microorganisms.

Speaking of microorganisms, kisses transfer fewer germs than handshakes.

2.

So if youre sick with a cold, feel free to

smooch as long as you keep your hands to

yourself.

Hands come in contact with a lot of surfaces, making them much more critical in the chain of infection than your lips.

You are taller in the morning than you are at night.3.

Over the course of the day, the effects of gravity push down on your spine. When you lie down at night, gravity isnt pushing down on your vertebrae, allowing your back to stretch to its natural length. In the mornings, you can be as much as 25 mm taller.

Similarly, in the weightlessness of space, astronauts can actually grow up to 2 inches in height.

Genes only make up 3% of your DNA.4.

While scientists initially thought the other 97% was junk DNA, they found that this noncoding DNA controls gene activity, turning genes on or off and programming other compounds.

5.

Of course, thats hair not still connected to your scalp, so dont try reenacting scenes from Rapunzel anytime soon.

Human hair can support 12 metric tons.

6.

Red blood cells live about 4 months

White blood cells live over a year

Sperm cells live all of three days

Brain cells typically last an entire lifetime

Skin cells live about 2-3 weeks

Colon cells live for only four days

Cells in your body are constantly dying and regenerating.

7.

Human bone has a support strength that is four times that of concrete. A block of bone the size of a matchbox can support 9 metric tons.

Human bone is as strong as granite, at least in terms of support.

8.In a lifetime, the average person sheds about 40 pounds of skin.

Thats more than the weight of the average American 4 year old.

9.

Our hairs just happen to be so short, light, and fine that they are practically invisible.

Humans have about the same number of hairs on their bodies as chimpanzees.

10.

But dont fret. In your 5 liters of blood, every microliter contains 5,000 to 10,000 white blood cells.

White blood cells only make up about 1% of the cells in your blood.

11.

But dont fret. In your 5 liters of blood, every microliter contains 5,000 to 10,000 white blood cells.

Brought to you by Cell Biolabs | cellbiolabs.com

Resources:

http://www.news.com.au/technology/science/crazy-facts-weve-learned-from-science/story-fn5fsgyc-1226758995145

http://www.dailymail.co.uk/news/article-508016/Why-kiss-better-handshake-want-avoid-cold.html

http://breakingmuscle.com/health-medicine/10-awesome-and-little-known-facts-about-the-human-body

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1459276/

http://phys.org/news/2011-02-fairytale-rest-human-hair.html

http://listverse.com/2008/06/10/top-15-amazing-facts-about-the-human-body/

http://www.babycenter.com/0_your-childs-size-and-growth-timeline_10357633.bc

http://www.theguardian.com/science/2013/jan/27/20-human-body-facts-science

http://www.npr.org/blogs/health/2012/06/13/154913334/finally-a-map-of-all-the-microbes-on-your-body

http://www.livescience.com/33179-does-human-body-replace-cells-seven-years.html

http://blogs.ancestry.com/cm/2014/09/16/10-weird-but-true-facts-about-dna/

http://listverse.com/2013/05/02/10-amazing-facts-about-dna/

http://www.livescience.com/40712-immune-system-surprising-facts.html

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