Increases Alpha Waves and Alertness-SLEEP

[Guest guest]

<The brain emits weak electrical impulses (brain waves) that can be

measured on the surface of the head. The predominant frequency of

electrical impulses correlates with different types of mental states

and activities. Brain waves are classified into four categories

(delta, theta, alpha, and beta)-each with an associated mental state

(Fig. 1). Delta is seen only in the deepest stages of sleep. Theta is

seen in light sleep and drowsiness. Alpha is present in wakefulness

where there is a relaxed and effortless alertness and Beta is seen in

highly stressful situations and where there is difficulty in mental

concentration and focus. It is well known that alpha brain waves are

generated during a relaxed state and therefore alpha waves are used

as an index of relaxation.>

 

Talking about delta sleep...is that when you dream? I'm always

wondering if I've gotten into the deep sleep stage during the

night...so if I know I have had dreams, does that mean I've reached

the " delta " stage?

 

~Robin

[Guest guest]

Talking about delta sleep...is that when you dream? I'm always

wondering if I've gotten into the deep sleep stage during the

night...so if I know I have had dreams, does that mean I've reached

the " delta " stage?

 

~Robin

 

I believe delta sleep is deep sleep Robin, but dreaming takes place in rem

(rapid eye movement) sleep ... Babies spend over 70% of sleep-time in rem sleep

but people over 70 spend only about 10% of sleep-time in rem sleep.

 

Good night! - Ray.