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VIDEO: https://www.youtube.com/watch?v=9zVsvZjD5DM Questions: Between 8 am and 1

ID: 3464070 • Letter: V

Question

VIDEO: https://www.youtube.com/watch?v=9zVsvZjD5DM

Questions:

Between 8 am and 10 am, people are more likely to have a heart attack because

Blood pressure is elevated

People may exercise when their bodies are not yet "warmed up"

Cortisol levels are the highest

Just A and B

A B and C

What is the most important factor that can modulate or shift your body clock?

your activity levels

your food intake

your sun exposure

nothing can shift your body clock

According to the video, evidence from which age group supports the idea that the body clock shifts throughout the lifespan..

Aged individuals (> 65 yrs old)

Teenagers

Babies

All of the above

None of the above

Evidence presented in the video indicates that most people start to feel tired in the early afternoon because

The body is busy digesting lunch, and it drains energy from our brain

Cortisol levels start to drop in the early afternoon

Llight levels are not as bright in the afternoon as they are in the morning

Melatonin levels start to rise in the early afternoon

None of the above

An experiment discussed in the video gave different participants the SAME meal either in the morning or in the evening. This helped to reveal which of the following

That insulin is sluggish, slow to respond to elevated blood glucose levels, in the evening

That insulin is quick to respond to an increase in blood glucose in the evening

Blood glucose levels remained high for longer period of time in the evening

All of the above

A and C

Explanation / Answer

1. The correct answer is Option A. Blood pressure elevation can explain why most people are likely to have a heart attack in the morning.

2. The correct answer is Option C. Exposure to the sun is the most important factor that can alter the body clock.

3. The correct answer is Option A. Research on aged individuals suggest that the body clock shifts across the lifespan.

4. The correct answer is Option D. Melatonin levels begin to rise in the afternoon which is why people may feel sluggish.

5. The correct answer is Option E. Both A and C are revealed in the experiment.