Discussion Instructions Write a summary of one concept you feel was the most important in each of the following learning

1. 90 minutes

2.In a typical night, a person goes through four to six sleep cycles

3.d maybe

4. Polysomnography shows a 50 percent reduction in activity between wakefulness and stage 1 sleep. The eyes are closed during stage 1 sleep. However, if aroused from this stage of sleep, a person might feel as if he or she has not slept. Stage 1 might last for five to 10 minutes.

5.You do most of your dreaming during REM sleep. But your brain paralyzes your muscles so you do not act out the dreams.

During sleep, a person usually progresses through the 3 stages of non-REM sleep before entering REM sleep. This takes about 1 to 2 hours after falling asleep. The cycle is repeated three to four times each night. An adult spends more time in NREM sleep than in REM sleep. An infant usually spends about half of the sleeping time in NREM and half in REM stages.

6. d

7. a

8. b

Explanation:

im so sorry if any of these are wrong i tried to get as much info

c

Explanation:

google

Explanation:

El resultado del daño celular: Cuando las neuronas no pueden comunicarse, la memoria y la habilidad de aprender se dañan. Eventualmente las neuronas se mueren. Debido a todo este daño, el cerebro gradualmente se encoge y se hace menos funcional, lo que llega a muchos de los síntomas de la demencia.

Hi,

Nicotine is a chemical that alters how an individual feels.

I wanna say Latina or Italian

Latino is my first answer, although the asian ethnicity doesn't seem to far off the nose. Have a wonderfully great day

Explanation:

Nicotine is a chemical that alters how an individual feels.

Explanation:

Nicotine is a drug that stimulates the brain and have a mood-altering effect when taken in the body. It causes the release of dopamine in the brain that brings the feeling of pleasure and happiness in the body.

Nicotine is normally present in tobacco and tobacco products. Initially, nicotine intake improves concentration, reduces stress, reduces anger and improves mood but regular use of nicotine can cause body dependency on nicotine which causes nicotine withdrawal symptoms when the supply of nicotine is blocked or reduced.  

So by releasing chemicals like dopamine from brain nicotine alters how an individual feels.

Nicotine is not a mood enhancer. Nicotine is a chemical that alters how an individual feels.

Explanation:

I think these two statements are true, since nicotine generates a state of addiction to the person, and calms the temporary anxiety of the person, but it does not improve the mood in the long term, but it is in the period of consumption of the cigarette, after this the levels of anxiety and addiction increase over time.

Nicotine is considered addictive and an anxiolytic stimulant.

On the other hand, it triggers potentially malignant lesions throughout the body, mainly in the airways, and the oral mucosa, since in the latter the smoke impacts on it and leukoplastic areas usually appear where there is more contact with smoke or cigarettes.

On the other hand, it affects the respiratory tract in its effectiveness, and the cardiovascular system, promoting hypertension, stroke, thrombosis both superficial and deep, and enlanteans or alters the first line of defense of the immune response.

At the dental level, it encourages spirochetal infections that grow in strict anaerobic, humid environments, with temperatures a little higher than 37 degrees Celsius.

Oh, thx u, Have a wonderful day :

Explanation:

ok thanks

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