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Did you know?
According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
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The average adult has about 21 square feet of skin.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.
![Boundaries within landscapes created by human activity (background) and natural environmental gradie](https://biology-forums.com/gallery/47/medium_33_27_08_11_11_52_18_15341177.jpeg)
![Horizontal, frontal (coronal), and sagittal planes in the human brain and a cross section of the ...](https://biology-forums.com/gallery/30/medium_548020_02_06_17_12_10_54_30214317.png)