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TIL - Appetite control in the human body is so complex that there are ~20 appetite inhibitory hormones and 6 appetite stimulatory hormones all acting to maintain our satiety. This complex biology has made it exceptionally difficult to formulate drug interventions for appetite control.

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vPRxB TIL I learned for the Voyager program engineers computed 10,000 potential trajectories. This was done not only to optimize the journey but also avoid having voyager reach a planet at Christmas or Thanksgiving time.
mWRR TIL that in Ancient Alexandria there was a prominent Mathematician named Hypatia. She came to embody the enlightened Alexandian spirit. She was flayed to death with oyster shells by a Christian mob. Her death is considered by many to be the beginning of the end for intellectual Alexandria.
p8Xdp TIL Over 100 bronze Roman dodecahedrons "from the 2nd to 4th centuries AD" have been unearthed over the past three centuries. No written sources from the period mention these objects, and scholars continue to speculate about their mysterious purpose.
R7pda TIL A new, low-cost wound dressing leverages energy generated from a patient's own body motions to apply gentle electrical pulses at the site of an injury. In rodent tests, the dressings reduced healing times to a mere three days compared to nearly two weeks for the normal healing process.
d8xAB TIL that fawns (baby deer) are often left alone for hours while their mothers forage for food. Sometimes well meaning people ‘kidnap’ the fawn thinking it’s abandoned when it’s really just waiting for its mom.