I'm going to share some note that I get it from my fulamak forum. It's about BRAIN DAMAGING HABITS.

1. No Breakfast
People who do not take breakfast are going to have a lower blood sugar
level.
This leads to an insufficient supply of nutrients to the brain causing
brain degeneration.

2. Overeating
It causes hardening of the brain arteries, leading to a decrease in mental
power.

3. Smoking
It causes multiple brain shrinkage and may lead to Alzheimer disease.

4. High Sugar consumption
Too much sugar will interrupt the absorption of proteins and nutrients
causing malnutrition and may interfere with brain development.

5. Air Pollution
The brain is the largest oxygen consumer in our body. Inhaling polluted
air
decreases the supply of oxygen to the brain, bringing about a decrease in
brain efficiency.

6. Sleep Deprivation
Sleep allows our brain to rest. Long term deprivation from sleep will
accelerate the death of brain cells.

7. Head covered while sleeping
Sleeping with the head covered, increases the concentration of carbon
dioxide and decrease concentration of oxygen that may lead to brain
damaging effects.

8. Working your brain during illness
Working hard or studying with sickness may lead to a decrease in
effectiveness of the brain as well as damage the brain.

9. Lacking in stimulating thoughts
Thinking is the best way to train our brain, lacking in brain stimulation
thoughts may cause brain shrinkage.

10. Talking Rarely
Intellectual conversations will promote the efficiency of the brain