Facts about human brain

3 = the weight of your brain in pounds

4 to 6 = the number of minutes your brain can survive without oxygen before it starts to die

8 to 10 = the number of seconds you have before losing consciousness due to blood loss

10 to 23 = the number of watts of power your brain generates when you’re awake (that’s enough to turn on a light bulb!)

20 = the percentages of oxygen and blood flow going to the brain

100,000 = the number of miles of blood vessels in your brain

1,000 to 10,000 = the number of synapses for each neuron in your brain

100 billion = the number of neurons in your brain.