Oxygen and Brain

To breathe is to live. Man can live without food for weeks, days without water. But he will not survive without oxygen for more than a few minutes . In paper 1, we have a glimpse on how a hundred billion neurons form an intricate but highly systematic network to transmit information to and fro in the brain. However, such information communication is no longer possible if oxygen supply to the brain is cut off.
Types of ions inside and outside the neuron
The neuron membrane is a sele...