Name: Why do we bite our nails? | #aumsum
Uploaded: 2019-04-18T09:03:54.000Z
Duration: 1 min 9 s
Description: Nail biting or onychophagia is a bad habit and there is no specific reason why people do it.\n\nBut do you know how a habit forms?\n\nA habit forms due to three...

Nail biting or onychophagia is a bad habit
and there is no specific reason why people do it.

Ha, I'll find the reason in only 2 seconds.

A habit forms due to three things, a trigger,
action and reward.

So, in case of nail biting, a research suggests that a broken nail which is hurting can be a trigger.

When the broken nail is taken off, the pain
is reduced and we feel better.

Now, if we again encounter similar triggers
like a broken nail.

We repeat the same action to get the reward which gradually causes onychophagia.

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