Hashimoto's thyroiditis, also known as Hashimoto's Disease or chronic lymphocytic thyroiditis, is an autoimmune disease in which the body's immune system attacks the thyroid gland.
But year after year, 15 captains of 15 teams fail in their pursuit of such a lucrative prize. The Stanley Cup is without a doubt the hardest championship trophy to win in all of professional sports. Harder than winning the Superbowl, harder the winning the World Series, and harder than winning the NBA Title. There are 16 teams in playoff contention, only other sport that can claim the same would be the NBA.
According to BreakingMuscle.com boxing is the toughest sport. Boxing is a martial art and combat sport in which two people throw punches at each other, usually with gloved hands. Historically, the goals have been to weaken and knock down the opponent.