Medically termed as halitosis, bad breath could belie something more serious.
Halitosis can be transient.
When we sleep, less oxygen flows through the mouth.
This allows bacteria to multiply and give off a bad smell, explains Dr Daylene Leong, dental surgeon from Specialist Dental Group Singapore.
A good brush of the teeth and tongue should fix this your bad breath in the morning.
If despite keeping good oral hygiene (brushing teeth at least twice a day for two minutes each time, brushing the tongue and flossing teeth at least once a day, and visiting the dentist every six months), foul breath is chronic or persistent, warning bells should sound.
Don't ignore persistent bad breath - alert your dentist so he/she can help you ID the root cause. Here are five possible reasons for the stink.
SHAPE Singapore is now available in both print and digital formats. Log on to www.shape.com.sg to subscribe!