1821. Memories are shockingly unreliable and change over time.

1822. Emotions, motivation, cues, context and frequency of use can all affect how accurately you remember something.

1823. This includes “flashbulb memories” which occur during traumatic events.

1824. Of the thousands of thoughts a person has every day, it’s estimated that 70% of this mental chatter is negative self-critical, pessimistic, and fearful.

1825. Think you’re in control of your life? Don’t be so sure.

1826. Ninety-five percent of your decisions take place in your subconscious mind.

1827. A blood-brain barrier protects your brain by preventing many foreign substances in your vascular system from reaching the brain.

1828. Few facts about the brain are as strange as the posthumous story of Albert Einstein’s brain.

1829. Nicotine rushes into the brain in a mere 7 seconds.

1830. Our brains crave mental stimulation, sometimes to a fault.