In the steady state, cardiac output equals. venous return. Factors that cause hypereffective heart. Sympathetic stimulation can increase the effectiveness of the heart via: (2) increasing the strength of heart contraction. Factors that can cause a hypoeffective heart: (1) coronary artery blockage.
Thursday, March 19, 2015 - 11:09. Ed Sheeran has added yet another amazing accolade to his collection with the news that his global smash hit sophomore album X has hit the 2 million sales mark, joining a select band of chosen superstars to hit the same achievement.
Ed Sheeran is now the most streamed artist of all time on Spotify, with more than 3 billion streams to date, and with over 59 million listeners this year. Breakout Artist of 2015: Kygo Norwegian DJ and producer, Kygo, is crowned breakout artist of the year, becoming the first Spotlight artist to reach 1 billion streams, with hits including Firestone and Stole the Show.