Monday, May 16, 2011
Every breath you take depends on your body's respiratory system extracting oxygen from the air, expelling carbon dioxide, and filtering out and fighting airborne invaders. Why not take a breather and explore a selection of our Respiratory System images.
Thursday, May 12, 2011
WAKE UP! You! Yes, you! You were half asleep, and we have the proof:
Saey, Tina Hesman. "Half-asleep Rats Look Wide Awake." (sciencenews.org)
"The findings add to a growing body of evidence that sleep doesn’t necessarily involve the whole brain at one time...it could mean that lost sleep is even more dangerous than previously believed, leading to slips of the tongue, driving mistakes, errors of judgment or other problems"