Seeing red: why do we blush?
Do you blush easily? We tend to blush when we’re embarrassed, ashamed or nervous. Why do our cheeks go red, and why can’t we control it? And does blushing serve a purpose?
All posts tagged: blood
Drinking water: can there be too much of a good thing?
Water: it covers 97% of the planet, makes up almost two-thirds of each of us, and is a requirement for life as we know it. But did you know too much of it can kill you?
Dying to stay alive
You've suffered a gunshot wound. You're losing blood and your organs are failing fast. Would you let doctors drain your blood and chill your body to 10 ºC, entering a state of clinically-dead, suspended animation, to buy precious time that may save your life? This radical technique is being trailed by a group of doctors at the University of Pittsburgh Medical Center in Pennsylvania.
Dr Jen Martin 