If it was such an bad thing, why would it be the overwhelmingly-preferred eating strategy of the leanest people on the planet (bodybuilders, including professional)?
So you saying when eat only two or three times in a day your blood sugar/insulin levels go down and when you eat it goes up? And this up and down is bad for you?
Where if your blood sugar/insulin levels are always up it is better for you?
Eating 6 times day your blood sugar/insulin levels will always stay up.
Not up, steady. If you eat lots of starches and sugars, it will be higher than if you eat very few carbs. Smaller, more frequent meals also mean you’re less likely to jump on the food as if it was trying to run away when it’s not.
Not sure I understand what it is you’re asking…
Maybe it’s because you have a poor circulatory system. Maybe it’s because you’ve got poor muscle composition due to a lifetime of poor physical fitness. The point is, if you get body stiffness due to long periods of sitting - you need to get up and move around periodically. Better yet, get some regular (daily) exercise. If you’re sitting for 4 hours at time, perhaps you need to change your habits.
Chronic joint pain requires medical attention. See a medical professional and get a proper diagnosis and treatment. Often, the best way to keep things from getting worse is to get some exercise - even if it is arthritis, moving helps those with mild to moderate symptoms.
So you are saying I may have little to no muscles? I may have to work out and lift weights?
No. I said you need to get up and move more frequently. I have no idea what your body composition is like.
So some one with little to no muscles have to get up and move around more than some one with lot of muscles?
Or there could be some thing else like muscle wasting or muscle atrophy from laying and sitting too much.
And the body stiffness is nothing to do with little to no muscles but muscle wasting or muscle atrophy.
That just hour a day of walking will prevent muscle wasting or muscle atrophy.
Muscles have nothing to do with it.
Activity (exercise) does.
People who don’t exercise (even just stretching) tend to get stiff.
Maybe it’s rigor mortis getting a jump on things.
Walk one down, maybe.
The new fad is intermittent fasting, going 12-20 hours a day w/o eating anything and consuming all your calories in the remaining 4-12 hours.
Looks like he’s running to me
Again, no. Sitting for hours at a stretch is not good for any body type.
It’s possible, in extreme cases of sedentary lifestyles . Because sitting for hours at a stretch is not good for any body type.
It could be caused by a variety of reasons. If it’s chronic, consult with a medical professional.
Any form of exercise would be beneficial. How much depends entirely on what you want to achieve.
Where are you going with all this? Wasn’t your OP about daily eating habits?
I’ve been doing this for about 15 years now - eating once a day. I’m a trend setter. 
Not familiar with the op’s past health-related threads I guess. (S)he’s moved on from thin bones and snapping joints … it’s progress!
I wasn’t. And now I know. Thx.
Except most of us aren’t running down wildebeests. We’re sitting in cubicles staring at computer screens for 9 hours a day.
Every book, magazine, media and such talk about being on air plane or being in car on road and you need to get up and move around do not sit for too long. Everyone knows being on air plane or being in car you can get body stiffness and by getting up and walking around it helps. No one yes no one no book, magazine, media or web sites talks about computer IT jobs or sitting home in front of TV and getting stiffness.
It funny I know some friends and family who have snapping joints and most them have sedentary lifestyle and people I know that do not have snapping joints are active and do not have a sedentary lifestyle.
Some people have tight body tendons from sitting or laying too much and by moving around and doing body stretching you will loosen up the tendons and it will not snap.
It will go away when you get up and move around and do some body stretching.
Again books, magazines, media and do not talk about about this. Even some doctors do not talk about this.
The human body was not built to sit or lay like in today’s worlds.
You must not read much.
http://fitness.mercola.com/sites/fitness/archive/2015/05/08/sitting-too-long.aspx
http://www.simplebackpain.com/sittingatacomputer.html
http://www.marksdailyapple.com/16-tips-for-desk-jockeys-what-to-do-about-sitting-all-day/
And, the admonition to get up and move when sitting in an airplane is to prevent DVT, not just to reduce stiffness. It’s also recommended to do calf exercises to promote blood flow.