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"It shouldn't be news by now that stress, especially chronic, prolonged stress, can have negative effects on your health and well-being. .. new research shows that chronic, constant stress from things like a busy job and tense home can lead to more than just the occassional headache."

You can't avoid stress, but there is much you can do to help build resilience to the toxic pressures of everyday life.

Most of us think of adult play as respite or indulgence, but having fun is no trivial pursuit. In fact, it's crucial to put mental creativity, health and happiness.

National Geographic has part of their website devoted to the human body, this page covers brain anatomy and disease.

"Image is powerful. A universal language of sorts, images evoke emotion, can mobilise the masses and even change the course of history. But, images are representations, not reality. And representations of what our culture deems as beautiful or not can have a profound impact on our lives."

"We all have times in our lives when we just have too much stuff going on. There are always deadlines, exams, due dates and just too many priorities to juggle. And when everything is going wrong, the world is screaming for your attention and you just don't have time - the last thing you need to hear is to "just take a day off". So here are 55 gentle ways you can take care of yourself when you're pressed for time and attention. Enjoy!  "

Sleep deprivation study in rats

In what was the longest sleep-restriction study of its kind, Dinges and his lead author, Hans Van Dongen, assigned dozens of subjects to three different groups for their 2003 study: some slept four hours, others six hours and others, for the lucky control group, eight hours - for two weeks in the lab.