Symptoms of significant brain atrophy include progressive cognitive impairment involving multiple cognitive functions, otherwise known as dementia, seizures and aphasia, which is the disruption in the understanding or production of language or both.
The Senate majority leader has somewhat less official power than the Speaker of the House. This is because the vice president is technically the Senate's presiding officer, a ceremonial position that calls chiefly for casting a vote in the event of a tie.
Majority Leader. Like the Speaker, the majority leader is elected every two years. The majority party selects the majority leader during meetings before the start of a new Congress. The majority leader is second-in-command to the Speaker of the House.