rubenmeermanCoolest Poo Experiment Ever:
STEP 1: Fill gelcap with 50 glass beads, less than 2mm, all same colour
STEP 2: Volunteer swallows one cap on consecutive mornings; red beads first day, blue second, yellow third
STEP 3: Sieve volunteers’ movements until all beads re-emerge
STEP 4: Publish
This fascinating experiment was conducted over a period of 11 years, from 1913 to 1924, by four doctors at the University of California Medical School, San Francisco. The idea was adapted from experiments with glass beads in rabbits, and another with millet (grass) seeds in humans. The volunteers in this study were mainly medical students and interns, all men, and patients recovering from minor operations, some with constipation, including an unreported number of women.
>> FIRST IN, FIRST OUT (SOMETIMES):
“One of the things that has puzzled us most in this study”, the doctors wrote, “is the fact that the beads given on the second day nearly always come through a little faster than those of the first; and those given on the third day come through even faster”. They thought of two possible explanations for this 1) that the beads stimulate peristalsis, and thus speed up progress and 2) that the first set of beads are retained in the appendix or pockets so that the bowel could make a “special effort to digest them”. >> SURPRISE NUMBER 2:
Another big surprise, and the reason the study took longer than expected to complete, was that the doctors “repeatedly failed to get more than 90 or 95 per cent of the beads in the first week”. At first, they suspected the volunteers had simply failed to bring in all their stools, or that beads were slipping through the sieve. It turned out, however, that they simply weren’t collecting the stools long enough. “Thus, in one instance,” they wrote, “in the case of a constipated person, the stools were sieved carefully until all the beads were accounted for, and the last one came through on the fortieth day.”
>> BUMMER ABOUT THE BEADS
The unfortunate problem is that glass is much more dense (heavier) than food, so the technique was abandoned. The breakthrough that solved this problem was even more ingenious. STAY TUNED #wellnesswednesday #diet
- sew_wattscreativeWhat a sh#t experiment lol 😁 💩💩
- saskiahomegiftsyouOmg now that is interesting 💩💩
- lalabondiI'm tuned! 🎶
- c.pezaroHi Ruben! Can I post this to Tumblr and credit you?
- rubenmeermanG'day @c.pezaro, yeah sure go nuts! There's another book lurking in all of this... fascinating huh?
- c.pezaroDefinitely, and yay! A book about poo 😉
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