Which of the following statements about humor are true?
1. Sick jokes make you ill.
2. Dry wit causes dehydration.
3. Jokes in bad taste trigger dysgeusia (distortion of sense of taste).
4. Laughter reduces arterial wall stiffness, lowers the risk of heart attack, burns calories and enhances fertility.
If you picked number 4, you are correct. What you may not know, however, is that laughter can also have an adverse impact.
Intense laughter can cause the heart to rupture or the gullet to tear. Asthma attacks and inhalation of foreign bodies can also occur, and laughing sometimes triggers incontinence and hernias. Keep laughing—but laugh carefully!