10-year-old is always hungry, no matter how much he eats

SPH Brightcove Video
28 February is Rare Disease Day. David has Prader-Willi syndrome or PWS - a rare, complex genetic condition that leaves him with no hunger switch, which means he does not have that sense of feeling satisfied after a meal.
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SINGAPORE - Mealtimes are coveted affairs for 10-year-old David Soo, who is constantly driven by the urge to eat. It is not a pleasurable live-to-eat feel that many enjoy but an uncontrollable hunger that he has to wrestle with for the rest of his life.

David has Prader-Willi syndrome or PWS, a complex neurodevelopmental and genetic condition that leaves him with no hunger off switch, which means he does not have that sense of feeling satisfied after a meal. His stomach simply does not tell his brain that he is full.

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