. I'm still feeling the after effects of the heat exhaustion I was diagnosed with last summer. I had to stop walking because of the heat & humidity, my body simply cannot tolerate it anymore. And since I'm not walking I literally feel listless & in general like crap which in turn affects my motivation. It's a vicious circle.
Something you can try and it only takes ten minutes a day but when you are done that lifeless listless body groggy feeling should be gone and you'll be ready to tackle your day.
If you have an elliptical, stationary bike, mountain climber (not a treadmill - you need to be able to instantly go into a sprint and instantly out of a sprint) - plan for a ten minute work out. I use an elliptical.
First three minutes a normal casual pace, nothing crazy just a comfortable pace.
Then a the 3 minute mark sprint for 20 seconds, then go back to the comfortable pace you were using to start.
Repeat the 20 second sprint at the 5 and 7 minute marks.
Finish up with the comfortable pace.
I've read that if done correctly (really pushing yourself during the sprints) this ten minutes can equal a 40 minute cardio workout.
If nothing else ... you will be awake and ready to go when done.
Side note: I've been doing this since 2016 as part of my workout route (usually I do ten minutes before lifting and ten minutes after) health and fitness wise it's great ... and I can really tell the difference in how I feel on the 'off' days when I don't do this - it's tough to get moving. But the days I do this, even if I don't lift, I feel great.