Do you take your smartphone or book to the toilet? Spending more than 10 minutes on the toilet causes blood stagnation in the pelvis and increases pressure on the liver.
The main danger is incorrect posture
Sitting at a 90 degree angle compresses the rectum, causing hemorrhoids and constipation.
Place a small bench under your feet so that the angle between your torso and thighs is 35 degrees - this is the natural position for complete emptying.

And never push! It increases the risk of stroke by 4 times.
If you can't go to the toilet in 3 minutes, eat more beets and drink warm water with lemon on an empty stomach.
There are other risks too.
Toilet paper with fragrances and dyes causes irritation and dysbacteriosis.
Switch to multi-layered white or wash with cool water. And if you use wet wipes, make sure they are alcohol- and paraben-free.
Did you know that the toilet is the dirtiest item in the house?
The rim accumulates 200 times more bacteria than the floor.
Disinfect it every day with vinegar or peroxide. And never put toothbrushes next to it - splashes when flushing spread E. coli up to 2 meters.
Lastly, don't hold your breath on the toilet!
Deep breaths help relax the muscles, and attempts to "not breathe" increase the pressure on the internal organs. Breathe with your stomach, as in yoga, - this will facilitate the process.