A student at the University of Madras,India in 1948, where they usually tied their hair to a nail to keep from falling asleep while studying at night.
Tips for not falling asleep while studying:
1. Switch the lights on. Don’t even think about studying in just the lamplight at night.
2. Sit in front of a table.
3. No heavy meals.
4. Don’t use a table fan.
5. Drink more water.
6. Move around in your room.
7. Read out aloud while studying.