If you pretend to understand your baby, they might start talking sooner. Studies show infants whose parents respond to them in conversational patterns have better language skills and more vocalization during their toddler years- because if they can understand early on that speech elicits a reaction, they are more likely to use words to get what they want.  (, )

Nikola Tesla had such severe OCD that he rarely slept, was an extreme germaphobe, hated round objects, refused to touch hair, was fixated on doing things in sets of 3, had to have 18 napkins on his table during meals, counted his steps wherever he walked, and had a “violent aversion against the earrings of women.” He also died a virgin (probably) and fell in love with a pigeon.  (, , )