I'll second feeling the benefits of physical activity. The 7 minute workout is a great things to try for people that were never into sport. I was a runner for long time and never tried upper body / core training[1], and it's incredibly valuable. I really popped out of bed after that.
[1] crunches, dips, pushups, eagle, squats. Slowly but surely, especially the last two ones because they strengthened and opened hips and shoulders, and for a reason you just feel better after that.
And how can you get up at 4:30 and also "get enough sleep"?
As for the sleeping, I'm usually zonked out by 9:30-10.
I presume this means he has two meals -- a late dinner and an early breakfast.
There are other models too, for example 20/4.
Current research being done with the Keto diet: ALS, multiple sclerosis, Alzheimer's, and just about anything else that involves the brain like brain cancer. It's been proven to help type 1 & 2 diabetics, certain types of seizures and it's a great weight loss diet for most people.
Regarding LDL elevation on keto diets, this is true but not necessarily a reason to abandon the diet [2]. I recall listening to a podcast interview with keto researcher Dominic D'Agostino (I can't find it anymore) in which he expressed the following opinion on this: so many biomarkers improve on these diets, so if LDL gets elevated don't sweat it, because cholesterol is so poorly understood anyway.
Are you single by chance?
In fact a lot of people in my office work 7am-3pm.
http://www.cell.com/cell-stem-cell/abstract/S1934-5909(14)00...
- Sitting desk but use TimeOut to remind myself to stand every 30 minutes. I tried standing and treadmill desks but they didn't work for me.
- Paleo/keto diet. I have much more energy and my bloodwork's improved.
- 5x5 Strong Lifts
- 16/8 intermittent fasting
- Get enough sleep. This and diet are ridiculously important.
- Fun hobby! I get up at 4:30am to write and I love it (most mornings).
Try things and see what works for you. Experiment. It always sucks in the beginning, but it's hugely worth the effort.