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.
The second issue with the poll is the definition of doing exercise before bed. In this poll it is counted as exercising in the 4 hours before going to bed. But there are only 24 hours in a day, of which adults between the age of 23 and 60 are awake for 16-17 on average.So 4 hours seems a long time to call âbefore bedâ.n this poll it is counted as exercising in the 4 hours before going to bed. But there are only 24 hours in a day, of which adults between the age of 23 and 60 are awake for 16-17 on average. So 4 hours seems a long time to call âbefore bedâ.