Typical dimensions for a childâs picnic table are 33 inches long by 38 inches wide and 22 inches high. Stockbyte/Stockbyte/Getty Images. A newer design is the octagonal or round table with attached seating for up to eight.
External and internal forces can cause dysrhythmia. External factors include exhaustion, overexertion, emotional stress (such as Annie's campaign speech), cigarette smoking, drinking alcohol, and ingesting stimulants such as caffeine, decongestants, and cocaine.
For example: 1  Ischaemic heart disease (which causes angina and heart attacks). 2  Heart valve diseases can cause the heart muscle to enlarge which can trigger abnormal electrical activity. 3  High blood pressure (hypertension) can put strain on the heart and cause arrhythmias.