Vagal maneuvers are used to try to slow an episode of fast heart rate. These simple maneuvers stimulate the vagus nerve, sometimes resulting in slowed conduction of electrical impulses through the atrioventricular (AV) node of the heart. Be sure to talk to your doctor before trying these. Vagal maneuvers that you can try to slow your fast heart rate include: Gagging. Holding your breath and bearing down (Valsalva maneuver). Immersing your face in ice-cold water (diving reflex).
Some examples of renewable energy sources are solar energy, wind energy, hydropower, geothermal energy, and biomass energy. These types of energy sources are different from fossil fuels, such as coal, oil, and natural gas.
Fossil Fuels (Coal, Oil and Natural Gas). When most people talk about the different sources of energy they list natural gas, coal and oil as the options â these are all considered to be just one source of energy from fossil fuels. Fossil fuels provide the power for most of the world, primarily using coal and oil.t isnât easy to determine which of these different sources of energy is best to use. All of them have their good and bad points. While advocates of each power type tout theirs as the best, the truth is that they are all flawed.