Working too hard without any rest can compromise your health, says Traditional Chinese Medicine practitioner, Wong Pang Ong.

Speaking to Shin Min Daily News, he listed 8 habits that people had that made the biggest damage on their lifespan.

1. Not visiting the doctor when ill

Professor Wong said that viruses from certain illnesses can wreck havoc on the heart and may stimulate a heart attack.

2. Not sleeping enough

Insufficient sleep can lower your immunity, rendering you more susceptibile to illness.

3. Irregular meals

Having erratic meal times can cause blood sugar to dip and cause problems with the endocrine system.

4. Lack of communication with family members.

Professor Wong said that mental well-being is important for a happy life.

>> Next page: Reasons 5-8