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.
What they found was that if you stay awake for 17 hours, your hand-eye coordination would be about the same as if you drank enough alcohol to bring your blood alcohol concentration (BAC) level to 0.05%. At this BAC, it is illegal to drive a car in many areas, but people drive after being awake for 17 hours all the time!he 17 year old Randy Gardner broke the previous record of 260 hours for his high school science fair project. This was in 1965 and I havenât read or heard of anything like it since.