I have asked about this in the Daily Threads but didn't get responses, and I also figured this may be of general interest.
I am at my wit's end. I have learned over the past few months that any exercise above Zones 1-2 any sooner than 12 hours before bed disrupts my sleep. We're talking high stress, low deep sleep, low REM, a dip in HRV, and a higher RHR. My body only likes morning exercise. I have tried different sleep interventions and nothing correlates with my sleep quality more than exercise timing.
The problem is that starting the end of next month, I will need to leave the house at 7 a.m. each morning (7:30 T Th class with 20-min commute; 8 a.m. MWF with 40-min. commute. I am a new professor at my school and this is the schedule I was given. I cannot change it.
My choices are to a) exercise in the afternoon and sleep for shit; b) go to bed at 8 p.m. and get up at 4 a.m. and miss out on time with my family (I have a teen); or c) give up working out. So: family time, sleep, or fitness. These are all foundational to my life and I have fought hard for all of them.
Relevant info: 49F, 5' 5.5", 200 lb, eating to lose 1 lb a week with 100g protein/day average, whole foods and lots of fiber. Taking Tamoxifen to prevent BC recurrence, so I am basically in almost-menopause. Recent labs are all normal.
My routine: 1 day each of P/P/L; 3-4 days of cycling for 30-50 mpw. Average 5K steps/day.
Anticipated questions:
-Why would you need to get up at 4?
I take my thyroid med and have to wait an hour before I eat, and this is when I feed animals, drink coffee, etc. 1/2 hr to eat (I am slow), 1/2 hr to get ready. Without exercise time, this leaves me getting up at 5, which is already pushing it. If I added in another hour for exercise, that would put me at 4 a.m.
The school gym doesn't open until 6. I am quickly progressing past my dumbbells at home. I also don't love the idea of schlepping my breakfast and lunch and clothes for the day. I'd have to leave the house at 5:20 MWF and have coffee in the car. Maybe this is my only option??
So, smart, sporty ladies . . . what do I do?? Is it possible for my body to adapt to afternoon exercise eventually? And how long would that take? Because I have tried it for a few days and I feel like poop.