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: Foods that are claimed to be negative in calories are mostly low-calorie fruits and vegetables such as celery, grapefruit, lemon, lime, apple, lettuce, broccoli, and cabbage. There is no scientific evidence to show that any of these foods have a negative calorific impact. Celery has a thermic effect of around 8%, much less than the 100% or more required for a food to have ``negative calories''. A stalk of celery provides 6 calories to the body, but the body expends only half of a calorie digesting it. Even proteins, which require the most energy to digest, have a thermic energy of only 20%--30%.
 Question: is it true that celery has negative calories Context: The Stanley Cup playoffs (French: Les séries éliminatoires de la Coupe Stanley) is an elimination tournament in the National Hockey League consisting of four rounds of best-of-seven series. Eight teams from each of the two conferences qualify for the playoffs based on regular season points totals. The final round is commonly known as the Stanley Cup Finals, which sees the two conference champions play for the Stanley Cup.
 Question: is the first round of nhl playoffs best of 7 Context: Red blood cells may be given as part of a blood transfusion. Blood may be donated from another person, or stored by the recipient at an earlier date. Donated blood usually requires screening to ensure that donors do not contain risk factors for the presence of blood-borne diseases, or will not suffer themselves by giving blood. Blood is usually collected and tested for common or serious Blood-borne diseases including Hepatitis B, Hepatitis C and HIV. The blood type (A, B, AB, or O) or the blood product is identified. This relates to the presence of antigens on the cell's surface. After this process, the blood is stored, and within a short duration is used. Blood can be given as a whole product or the red blood cells separated as packed red blood cells.
 Question: are there different types of red blood cells Context: The right of self-defense (also called, when it applies to the defense of another, alter ego defense, defense of others, defense of a third person) is the right for people to use reasonable force or defensive force, for the purpose of defending one's own life (self-defense) or the lives of others, including --in certain circumstances-- the use of deadly force.
 Question: do i have the right to defend myself Context: The second-generation Chevrolet Traverse is offered in several different trim levels (all of which are available in front-wheel drive (FWD) or all-wheel drive (AWD), except for the base L, which is only available with FWD, and the top-of-the-line High Country, which is only available with AWD), and each offering their own distinct level of standard equipment:
 Question: does the chevy traverse come in 4 wheel drive
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