The production of silk originates in China in the Neolithic (Yangshao culture, 4th millennium BCE). Silk remained confined to China until the Silk Road opened at some point during the later half of the first millennium BCE.
Shift work eating tips:Whole grain, carbohydrate-based and low-fat foods tend to make us sleepy, which makes them an excellent choice for a meal before bed. Protein-rich foods keep us alert, which makes them a good choice for meals and snacks eaten during an evening or night shift.
Eat small meals or snack repeatedly on small amounts of food during your night shift. Pack fruit or vegetable juices and protein-rich foods, such as boiled eggs, sandwiches made with turkey or chicken, or a muffin spread with cheese or peanut butter. Eat these foods early in your night shift, when they will give you needed energy. Include fruits and salads in your lunch bag. A packet of trail mix containing nuts, seeds and dried fruit, can serve as a snack.