"Those hours of standing also turned out to have their own downsides, increasing people’s likelihood of developing serious circulatory problems, including varicose veins, abnormally low blood pressure and blood clots..."

"... compared with people who rarely stood.... In theory, being upright should stave off this harm, since it’s the postural opposite of sitting.... But surprisingly little credible science supports all this verticality, and some studies have raised doubts.... [A]s you stand still, blood flows through your legs sluggishly at best and often pools there, potentially contributing to circulatory disease. You also barely raise your heart rate, which is necessary to improve cardiovascular health...."

From "Your standing desk isn’t making you any healthier/A large new study found that standing for more than two hours a day doesn’t protect against the cardiovascular risks of too much sitting" (WaPo).

I have a motorized stand/sit desk. I recommend switching from sitting to standing and from standing to sitting whenever you notice that you feel a bit uncomfortable. Be in touch with your own feelings. 

And by the way, is standing "the postural opposite of sitting"? I was going to say no, but then I remembered...

The dentist is going to clean your mind and your soul.

A TikTok video, so I'm putting it after the jump: