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.
Dairy Products. Such dairy products as milk, cottage cheese, or yogurt is a good food choice for sound sleep. Dairy contains tryptophan that is the key point in the production of serotonin in humanâs brain. Serotonin in its turn provides us with the feelings of sleepiness and relaxation.he causes of sleeping problems can be very diverse, as well as the remedies to treat them, including even some certain foods. Share |. Pin It. A good sound sleep is one of the health guarantees. The lack of sleep can cause various disorders.