RE tie knots: depends on the tie and the shirt collar. Some point collars look better with a narrower knot like a FIH, others (cut aways) look better with a 1/2 windsor IMO. Some tie fabrics need more loops to get a knot proportional to the size of the blade, others need less etc.
Generally though I prefer a 1/2 windsor for business wear; FIH for business casual.
An aroma given off by male goats activates reproductive brain regions in their female counterparts.
The study is the first to make a link between pheromones that activate the “central reproduction axis”. Researchers collected pheromones from the heads of normal and castrated male goats using a custom-made cap and found a number of hormones specific to the intact goats.
Lead researchers Yukari Takeuchi and Professor Yuji Mori are hopeful the findings could be used to investigate links between pheromones and brain activity in other animals, and possibly even humans.