Week 6 - Fitness and Lifestyle

What percentage of Canadians are not engaging in 150 minutes of physical activity per week?

85% of Canadians are not doing 150 minutes of active a day.

Barriers to Physical Activity

Factors that prevent individuals from engaging in regular physical activity, including lack of time, inconvenience, and lack of self-motivation.

Define 'sedentary behaviour'.

A distinct class of behaviours characterized by little physical movement and low energy expenditure.

What are the stages of sleep?

The sleep cycle includes NREM stages 1, 2, 3, and 4, and REM sleep.

What occurs during REM sleep?

Rapid Eye Movement stage where dreaming occurs, providing energy to the brain and body, and supporting daytime performance.

What is the primary effect of sleep deprivation?

Impairs cognitive performance and mood when restricted to less than 6 hours per night for four or more consecutive nights.

What characterizes deep sleep (stages 3 and 4)?

Increased production and reduced breakdown of protein, energy restoration, and hormone release (e.g., HGH).

Define 'physically inactive'.

The absence of physical activity, typically reflecting the proportion of time not engaged in physical activity of a predetermined intensity.

What is the role of melatonin in sleep?

Melatonin is produced at night in response to darkness and regulates sleep-wake cycles.

What factors contribute to the lack of physical activity among Canadians?

Barriers such as lack of time, inconvenience, lack of self-motivation, enjoyment in exercise, confidence, fear of injury, self-management skills, encouragement, and built infrastructure.

What is the impact of deep sleep on the body?

Restorative processes occur, such as tissue growth and repair, increased blood supply to muscles, and hormone release.

How does light affect melatonin production?

Light triggers the brain to refrain from producing melatonin, helping keep us alert and awake.

What is sleep quality impacted by?

The 24-hour sleep-wake cycle or circadian rhythm that responds to light and darkness.

What are the characteristics of stage 1 sleep?

Transition stage of sleep, light sleep, where eyes drift back, and it is easy to be woken.

What is the significance of stages 3 and 4 of sleep?

These are crucial for deep restorative sleep where bodily recovery processes occur.