Answer: It's because he/she is constantly subjecting their legs to gravity, which veins are fighting against to move blood back to the heart.
Early civilizations used plants as medicine.
It appears that the answer is dependent on the topic you are currently covering.
Consciousness would need to be maintained for one's sense of self.
Your bowel movements (poop) are dependent on your food intake, health, and diet. Health affects its viscosity as well as color, and bad health or medical conditions can lead to dark stools.
[Green] may suggest that the intestines didn't break down the chemicals (because of diarrhea), or diet consisting of greens (vegetables).
[Red] stools should be taken with caution, and you should contact your doctor for a check-up.
[Black] stools can be a symptom of a disease, or the side-affect of a medication.
[Yellow] stools may be caused by a lack of bile salts( I'm not that sure, go on google if you are confused)
