Context: Death from laughter is a rare form of death, usually resulting from cardiac arrest or asphyxiation, caused by a fit of laughter. Instances of death by laughter have been recorded from the times of ancient Greece to the modern day.
 Question: can you have a heart attack from laughing Context: Father's Day is a celebration honoring fathers and celebrating fatherhood, paternal bonds, and the influence of fathers in society. In Catholic Europe, it has been celebrated on March 19 (St. Joseph's Day) since the Middle Ages. This celebration was brought by the Spanish and Portuguese to Latin America, where March 19 is often still used for it, though many countries in Europe and the Americas have adopted the U.S. date, which is the third Sunday of June. It is celebrated on various days in many parts of the world, most commonly in the months of March, April and June. It complements similar celebrations honoring family members, such as Mother's Day, Siblings Day, and Grandparents' Day.
 Question: is fathers day on a sunday every year Context: The winter solstice (or hibernal solstice), also known as midwinter, is an astronomical phenomenon marking the day with the shortest period of daylight and the longest night of the year. In the Northern Hemisphere this is the December solstice and in the Southern Hemisphere this is the June solstice.
 Question: is the winter solstice the shortest day of the year Context: In Euclidean geometry, a parallelogram is a simple (non-self-intersecting) quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure. The congruence of opposite sides and opposite angles is a direct consequence of the Euclidean parallel postulate and neither condition can be proven without appealing to the Euclidean parallel postulate or one of its equivalent formulations.
 Question: are all sides the same length on a parallelogram Context: LED grow lights vary in color depending on the intended use. It is known from the study of photomorphogenesis that green, red, far-red and blue light spectra have an effect on root formation, plant growth, and flowering, but there are not enough scientific studies or field-tested trials using LED grow lights to recommended specific color ratios for optimal plant growth under LED grow lights. It has been shown that many plants will grow normally if given both red and blue light. However, many studies indicate that red and blue light only provides the most cost efficient method of growth, plant growth is still better under light supplemented with green.
 Question: do red and blue led grow lights work
Yes
Yes
Yes
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Yes