' An Act to preserve daylight and provide standard time for the United States ' was enacted on March 19, 1918. [See law] It both established standard time zones and set summer DST to begin on March 31, 1918. Daylight Saving Time was observed for seven months in 1918 and 1919.
Nitrate-rich foods include lettuce, parsley and spinach. âLeafy vegetables contain chemical nitrate that improves heart health,â the Mail Online reports. In a recent study, researchers looked at the effects of a nitrate-rich diet on rats.
Beets have taken the limelight in the battle for nitrate supremacy, but the truth is many vegetables contain inorganic nitrates in high amounts 9. Keeping your nitrates high in your normal diet may maximise the effect; use beet juice to top it up before a major competition.