Aploon/iStock/Getty Images. Childrenâs picnic tables are made to a smaller scale than regular A-frame tables. They usually feature four lengths of timber for the table top and two lengths for the seats. Typical dimensions for a childâs picnic table are 33 inches long by 38 inches wide and 22 inches high. A newer design is the octagonal or round table with attached seating for up to eight. Table tops usually feature 10-12 lengths of timber or other building material while the benches commonly have three lengths.
Excess of physical exertion may precipitate facial and eye muscle spasm. It can be due to muscle fatigue. Side effects of certain medicines can produce facial twitching. Drinking excess of coffee, or any other caffeinated drinks can cause involuntary twitching of muscles, facial muscles are one of them.
A RealAge answered. Your lip twitches when the muscles that connect to your lip contract involuntarily. Muscle twitching or spasms can occur for many reasons and may be triggered by stress, fatigue, or a side effect from a medication. Twitches of lips, eyelids, and calf muscles usually go away within a day or two, but they can sometimes be a symptom of a more serious condition or disease. If your twitch is persistent, it's a good idea to see your doctor.