Sleep
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Summary
Aim for 7.5-9.5 hours per night (even if you feel you get enough sleep there is likely benefit to targeting this range)
Poor sleep can make us feel more hungry and crave certain foods by altering hormones
Poor sleep can impact our response to insulin, so if we eat certain foods that are higher in refined carbohydrates or sugars our blood glucose will rise more after a poor sleep
Poor sleep can reduce our exercise and performance
Poor sleep can worsen multiple chronic diseases
If you want to learn more, read "Why we Sleep” by Michael Walker
Consider doing a sleep apnea screen (below), and if positive, speak with your clinician about a sleep study. Sleep apnea can lead to serious medical conditions if not treated.
Sleep tips
Good sleep hygiene starts as soon as you wake up!
Morning
Get bright light 30-60 mins from walking. Sunlight best for cortisol peak. Bright day 5 mins light. Cloudy day ok 10 mins.
Eating earlier can help with waking up and support an earlier bedtime
Cold water / shower and exercise can all help you wake up which will ultimately prepare you for sleep in the evening
Afternoon
Limit caffeine after 2-3pm
Non-sleep deep relaxation or a short nap (under 90 minutes and ideally before 2-3pm) can help you rest during the day if needed. These are optional
Exercise (any time can help but be aware that intense exercise 1 hour before bed may delay sleep in some people)
A little sunlight in afternoon and evening for 5-10 mins can help prepare our body for sleep
Late evening
Limit all bright lights and try dimming the lights if possible
Avoid screens, or set night-time mode
A hot shower or sauna lasting under 20 minutes can dilate blood vessel and help cool the body, which can prepare us for sleep
Relaxation techniques before bed include stretching, meditation, aroma therapy (e.g. candles, herbal tea), colouring, and journaling can also help
Try to sleep around the same time every night
Sleep Environment
Keep it cool, dark, and quiet
Consider white noise (or other colour noise) if that helps
Eye masks help keep you sleep if not too tight or not too warm
Falling back asleep
You may wake up in the middle of the night for many reasons with one being stress. We will learn more about stress in the next module
Try body scans, guided meditation, and other tools in the stress module to help you get back to sleep
Try to avoid big meals within 4 hours of bed, and try to minimize foods that are fried, spicy, carbonates, contain peppermint, alcohol, and coffee since these can worsen reflux and result in trouble sleeping or arousals
Large meals may increase your body temperature (through the metabolism of food) that can also impact sleep
Lots of simple carbohydrates or sugars near bed can result in a rapid reduction in your blood glucose (“sugar crash”) that can also cause changes in hormones and lead to awakening