Cnidarians (Cnidaria) are a group of aquatic animals that includes jellyfish, corals, sea anemones, and hydras. The basic form of the cnidarian body is quite simple and consists of a gastrovascular cavity with a single opening through which food is ingested and waste is released.he body wall of cnidarians consists of an outer layer or epidermis, an inner layer or gastrodermis, and a middle layer or mesoglea. Cnidarians lack organs and posses a primitive nervous system known as a neural net.
14. Fish. The Vitamin B6 in many types of fish will help your body produce melatonin, without the need to take melatonin supplements. Some of the best types of fish to consume for better sleep are salmon and halibut, and there are other foods you can choose that also feature B6.
Healthy eating and exercise help improve your sleep and your overall health. These ten easy tips can help you stay healthy even with an irregular or shift work schedule. Have healthy foods readily available at home and at work. People who are sleepy are more likely to reach for unhealthy foods.