This sleep disorder called exploding head Syndrome is a very rare form of auditory hallucination. It is a parasomnia in which subjects experience a loud bang in their head similar to the explosion of a bomb, a cymbal clash, the ringing of a bell or an earthquake. The sound is garbled and seems to come […]
Dolphins are capable of what is known as the Unihemispheric sleep, in which only a brain hemisphere goes into a deep sleep while the other remains awake for the control of vital functions like, in the first place, respiration, since this act is voluntary in this animal. This allows dolphins to sleep under water without […]
During the first 90 minutes of sleep, you move from light sleep to deep sleep. Then, you enter Rapid eye movement sleep (REM); the stage during which dreams occur. During this phase, the motor neurons and the release of certain neurotransmitters, the monoamines (norepinephrine, serotonin and histamine) are inhibited, which causes muscle weakness, rapid eye […]
The koala sleeps between 18 and 22 hours every day, which makes it the mammal with the longest sleep cycle in the world. Given that its life expectancy is 15 years, this animal spends 12 years of it sleeping. And to top it all, it spends most of its waking hours eating. What an exciting […]