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.
Because of the natural flow of your body clock, or circadian rhythm, âyouâre actually at the worst 24 hours after your habitual wake-up time, Dinges says. Youâll have an unbelievably difficult time staying awake and alert.â.That is also the worst time for you to get in a car to drive home.ecause of the natural flow of your body clock, or circadian rhythm, âyouâre actually at the worst 24 hours after your habitual wake-up time, Dinges says. Youâll have an unbelievably difficult time staying awake and alert.â.