The Mysterious Sleep Pattern of Elephants: They Only Sleep 2 Hours per Night
A study published in the journal PLOS ONE and reported in Gizmodo suggests that if you need good advice on how to sleep deeper and longer per day - then an elephant is not the mammal to ask. This suggestion becomes imperative when researchers found out that elephants sleep only two hours per day - making them the shortest sleeping mammal. However, elephants in the wild sleep an average of two hours per day while those in zoos sleep an average of 4-6 hours per day.
It is injurious for humans to sleep for two hours per day
Elephants might get away with sleeping for two hours per day, but not necessarily humans. Medical experts warn that humans need an average of 7-9 hours of sleep per day/night for maximum health. Scientists say you need a good night sleep to recharge your body's strength and revitalize its functions. Good sleep durations are also needed to build memories and enjoy better health.
It is not necessarily true that you'd be dead if you slept like elephants, but researchers say better sleep reduces the risks of causing auto accidents as a driver. Better sleep also improves your emotional and psychological wellbeing, while giving you a better control on yourself during day-to-day activities. And to improve your chances of sleep tight each night, doctors advise you turn off the lights and reduce noises and keep the baby in its own cot among other suggestions.
How elephants survive on so little sleep remains a mystery
"Sleep is one of those really unusual mysteries of biology, that along with eating and reproduction, it's one of the biological imperatives," the authors of the study wrote. "We must sleep to survive." They authors were an international team of researchers from South Africa, Botswana, and the United States. They tracked the sleep pattern of two matriarch elephants in the Chobe National Park in Botswana to undertake their study, the BBC reveals.
It was necessary for the researchers to track the sleep patterns of elephants in the wild because these constantly face the threats of lions, poachers and other predators. Apart from the fact that the two elephants studied sleep an average two hours per day, they also went without sleep for nearly a week when the need for survival would not allow it. The scientists planted sleep tracker under the trunks of the elephants to measure how long their trunks laid still during sleep; and they also planted a gyroscope on them to determine whether they slept on their feet, supine to their right side or their left side.
Children Give Mothers Sleep Deprivation; But Fathers Are Never Affected – Study
Almost all mothers know that raising children makes adequate sleep impossible, now a new study has also confirmed it. The new research states that raising children makes mothers to suffer sleep deprivation while the same cannot be said of fathers. The authors of the study found that for every additional child in a household, mothers will sleep 50% less and less – but the sleep quality of fathers are never affected.
Excessive Sleep Is a Sign of Dementia; Here Are Other Symptoms
Excessive sleep is a symptom of dementia, but not the cause of dementia, researchers have found. The new study also found that people who sleep for over 9 hours every day increase their risks of developing dementia two fold within 10 years. And then, MRI scans of the brain reveal that people who sleep in excess of 9 hours daily have smaller brain volumes compared with those who sleep less.
Nuclear fallout could help track down poachers
Nuclear fallout from Cold War tests of atomic weapons could help track down poachers of ivory. The same method cold also be used to solve murders and stop art forgeries.
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