Short item about why people sniff when they cry.
Note: Probably filmed in the Pathe studio.
Title read: 'WHAT DO YOU KNOW ABOUT YOU ? - WITH SHEILA BLIGH'
M/Ss of Sheila sitting at dressing table crying. The commentator explains why people sniff when they cry. C/U of Sheila wiping her eyes. She turns and looks at the camera and winks. The commentator says "One thing the scientists can't explain is why a wink should do things it does to us."