As strange as the name sounds, exploding head syndrome is actually a rare and relatively undocumented sleep phenomenon. While sleeping or dozing, a person with the condition hears a terrifically loud sound in their head, such as a bomb exploding, a clash of cymbals or a gun going off.

“It’s usually described as a loud bang or pop that occurs in the first third of the night,” says Dr. Neil Kline, sleep physician and representative of the American Sleep Association in Wilmington, Del. “It’s a sensory phenomenon. The individual senses that some type of explosion has occurred nearby, but ultimately realizes it’s in their head. It’s not associated with pain or with any disorder that we know of and there are no physiological medical consequences that are associated with it.”

Read More: MSNBC: Loud crash at 3 a.m.? It may be your exploding head

(via William Gibson)

See also:

Wikipedia entry on Exploding Head Syndrome

Sleep paralysis

In a paper published last month in the journal Nature Reviews Neuroscience, Dr. J. Allan Hobson, a psychiatrist and longtime sleep researcher at Harvard, argues that the main function of rapid-eye-movement sleep, or REM, when most dreaming occurs, is physiological. The brain is warming its circuits, anticipating the sights and sounds and emotions of waking.

“It helps explain a lot of things, like why people forget so many dreams,” Dr. Hobson said in an interview. “It’s like jogging; the body doesn’t remember every step, but it knows it has exercised. It has been tuned up. It’s the same idea here: dreams are tuning the mind for conscious awareness.”

Drawing on work of his own and others, Dr. Hobson argues that dreaming is a parallel state of consciousness that is continually running but normally suppressed during waking. The idea is a prominent example of how neuroscience is altering assumptions about everyday (or every-night) brain functions.

New York Times: A Dream Interpretation: Tuneups for the Brain

(Thanks Bill)

Real mutants live among us with real super powers:

No one knows why some lucky folks thrive on five or six hours of sleep per night, while the rest of us suffer if we don’t get eight hours of shut-eye. But now scientists have discovered a genetic mutation that could be responsible for the eternal perkiness of short-sleepers.

Combing through a database of sleep-study volunteers, the researchers found two people who needed far less sleep than average. Both had abnormal copies of a gene called DEC2, which is known to affect circadian rhythms and oxygen regulation in mammals. When the scientists bred mice to have the same mutation, the mice slept less and were more active than their regular rodent peers.

Wired: Lucky Sleep Mutants Need Fewer Zzzzzs

1. Keep a schedule
2. Eat light in the evening
3. Have things you WANT to do during the day
4. Plan your day
5. Drink water before bed and upon waking
6. Exercise
7. Have some private time in the morning

Full Story: Dumb Little Man.

(via Robot Wisdom).