I have observed hydrocephalus in a neonate at my first visit ever to the Perinatology today.
Nobody remembers their first 28 days of their lives (aka the neonatal period). Yet, even when memory and immunology haven't fully developed, we already have primitive reflexes that act as our initial defense to anything that threats us; crying, arm grasping and feet kicking. It's like ever since we were first born into this world, we were determined to fight.
(I have drank my first cappuccino in 2 years without experiencing caffeine side effects)