Worldwide, too little iodine in the diet is the most common cause of hypothyroidism. In countries with enough iodine in the diet, the most common cause of hypothyroidism is the autoimmune condition Hashimoto's thyroiditis.
The pronghorn is the second fastest land mammal in the world, after the cheetah. It can attain speeds of over 53 miles (86 kilometers) per hour. Size relative to a 6-ft (2-m) man: Fleet-footed pronghorns are among the speediest animals in North America. They can run at more than 53 miles (86 kilometers) an hour, leaving pursuing coyotes and bobcats in the dust.
The beating doesnât stop there, as Koenigsegg claims the Regera will brush up against 248 mph in an eye-watering 20 seconds, on to its rev-limited top speed of 254 mph. The Chiron would eventually catch up and pass the Swede, with a top end of 261 even without Bugattiâs special 280 mph package.