Human Body
Exploring "Why" questions about Human Body
481 articles
Why do “AIDS treatment breakthroughs” keep making it to the front page every week when all of them are nowhere near proven or relevant yet?
This isn't an HIV or Aids question, this is a why do people jump to conclusions so quickly question.
Why does 2008 still feel like a couple of years ago?
Probably because with each year that goes by, you have a longer frame of reference to what time feels like? I don't think I phrased that well, but what I mean is that if you are 5, one year is 20% of
Why it’s possible to stop breathing voluntary but not your heart beat?
Here's the real answer: Your diaphragm and intercostal muscles (the muscles that allow you to breathe) are under voluntary control. Your heart is an involuntary muscle. Your heart can also become dene
Why does hair grow strangely in Moles?
Moles are a type of tumour. Tumours are formed when cells cannot regulate their growth and split much too often, and grow too large. In tumours like moles, this usually doesn't cause problems, like ca
Why do real almonds not taste like almond paste/flavoring?
The almond flavour you taste in almond paste, marzipan and so forth comes from an aromatic called benzaldehyde. This is found in *bitter* almonds, which also have a fairly hefty amount of cyanide; the
Why does alcohol withdrawal give you such vivid, and sometimes very scary, dreams?
Alcohol suppresses REM stage sleep (the period when you dream), which your brain adjusts for as you become dependent. Once the alcohol is removed from the equation, your brain still tries to compensat
Why is the brain considered such a complex machine?
You are currently processing crystal clear images of your surroundings, focusing on this post, reading squiggles and translating them into sounds, connecting those sounds into words forming sentences
Why do we hear about so many soldiers in the present day wars in Iraq and Afghanistan returning with PTSD, yet it seemed to be nonexistent in those returning from WWII?
Back then it was called shell shock. Damn sure happened frequently but just not as discussed much like most mental illnesses
Why does our fingernails have faint lines going up and down?
well first you should know that its normal. Evenly spaced vertical lines are never a sign of a problem (But horizontal lines, you should see a doctor.) What happens is that as you get older, parts of
Why does brief lack of oxygen to the brain often feel good?
Ok, this is only a guess (until other, more knowledgable people answer your question), but first to clarify: your vision fading after standing up too quickly is due to low blood pressure, not lack of