The Prophet Muhammad SAW said:

1. Four things that make the body ill
- talking too much
- sleeping too much
- eating too much
- meeting too many people

2. Four things that wear the body down
- worry
- grief
- hunger
- sleeping late into the night

3. Four things that bring gloom and take away happiness
- lying
- insolence or disrespect
- arguing without adequate knowledge or information
- immorality, or acting without fear of consequence

4. Four things that brighten the face and increase happiness
- piety
- loyalty
- generosity
- helping others without being asked

5. Four things that cut off provision
- sleeping in the morning, from the dawn prayer until the sun is up
- not praying, or not supplicating regularly
- laziness
- treachery or dishonesty

6. Four things that bring provision
- supplicating at night
- repentance
- giving in charity
- remembrance of Allah