Structure of Haemoglobin: Haemoglobin is an aggregation of four globular proteins (typically two alpha and two beta subunits), each with an embedded haeme group. Each haeme group allows the binding of an oxygen molecule.
Here's another intriguing case from the Guinness World Records. In 1964, a 17-year-old high school student named Randy Gardner beat the world record for sleep deprivation by staying awake for 264 hours (11 days) without using any stimulants.
stay woke. Deriving from stay awake, to stay woke is to keep informed of the shitstorm going on around you in times of turmoil and conflict, specifically on occasions when the media is being heavily filtered- such as the events in Ferguson Missouri in August 2014.