Sigma (Ï) values are experimental values that are assigned to substituents that take into account both a substituentâs resonance and inductive effects. The sigma value has a sign (+ or -) and a magnitude or numerical value.
Dr. Yu found that prone sleeping was strongly associated with all kinds of charged dreams, such as having sex, being locked up, being smothered or unable to breathe, having a love affair with a celebrity, seeing a UFO, and being naked.
Doctors Answers (5) You should contact a sleep physician who can help you find a proper diagnosis. There are many that can cause daytime sleepiness. One is Narcolepsy, a chronic neurologic disorder of daytime sleepiness. But anything that disrupts sleep time or sleep quality can result in daytime sleepiness.