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.

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5. Sitting for prolonged periods of time

Sitting in one position for too long a time does not stimulate blood circulation and is bad for the joints.

6. Staring at the computer screen for too long

It is one of the reasons why people develop spine and neck problems, he says.

7. Not eating breakfast

Skipping the first meal of the day can cause irregular blood sugar and insulin levels. Abnormal insulin levels maintained over a prolonged period can cause diabetes. People who eat irregular meals are prone to kidney stones.

8. Not going for full body checkups

Ignorance can be a bane because it makes one unaware of what goes on in one's body, says Professor Wong.