Man breaks record for smashing walnuts with head

He's got to be nuts!

A man has smashed his way into the Guinness Book of World Records - by breaking over 200 walnuts with his head within 60 seconds.

Navin Kumar nutted his way to the bizarre record by breaking 217 walnuts using just his skull.

Navin said he was inspired to undertake the crackers challenge after watching a previous record-holder on YouTube.

Navin, who lives in Andhra Pradesh in India, said the first time he tried to crack a walnut on his bonce he was left with a headache which lasted a week.