Ammonia and smelling salts have long been used by NFL players before and during games to give them an extra pick-me-up whenever they need a boost of energy. This includes any form of smelling salts and ammonia capsules or inhalers.

Ever seen smelling salts used on the air? Well, the cast of "First Things First" did so on Thursday, and George Kittle approves.

San Francisco 49ers tight end George Kittle is making a stink about the NFL's recent ban on smelling salts. Kittle interrupted an NFL Network interview at training camp on Tuesday to "air a grievance" about the policy.