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Masja [62]
2 years ago
6

5) How do researchers know that there are different stages of sleep?

Health
2 answers:
Digiron [165]2 years ago
7 0
By countless hours of research and tests
Law Incorporation [45]2 years ago
4 0
Stages of sleep and sleep cycles. usually sleepers pass through five stages: 1 2 3 4 and REM(rapid eye movement ) sleep. these stages progress cyclially from one through rem then Begin Again with Stage 1. a complete sleep cycle takes an average of 90 to 110 minutes, with each stage last thing between 5 to 15 minutes.
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How to lose weight fast
lawyer [7]

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Carbohydrates, fats and proteins are the types of nutrients that contain calories and are the main energy sources for your body. Regardless of where they come from, the calories you eat are either converted to physical energy or stored within your body as fat.

These stored calories will remain in your body as fat unless you use them up, either by reducing calorie intake so that your body must draw on reserves for energy, or by increasing physical activity so that you burn more calories.

Tipping the scale

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In general, if you cut 500 to 1,000 calories a day from your typical diet, you'll lose about 1 pound (0.5 kilogram) a week.

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2 years ago
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Serjik [45]
The lungs is your answer :)

8 0
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3 years ago
Guided Practice
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Power is the fitness skill associated with the rate at which strength can be used. true or false
nlexa [21]

True.  It determines our ability to handle a strenuous workout or not. This is why it is important to take a check-up from a doctor before beginning any kind of exercise activity.  This is to ensure that you have a safe workout and that you can the amount of exercise in that program.

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