Sleeping in day time can cause headache? why..we are sleepy after lunch?!
Question:
Sleeping in day time can cause headache? why..we are sleepy after lunch?
Answers:
It's because the majority of your blood gets diverted to the digestive system where your stomach etc. begin to work. This diversion of blood lowers the amount of oxygen available to other parts of the body giving you that "tired" feeling.
This is also why it's not good to eat HUGE meals as they will make you lethargic and you'll end up vegging out.