The study leader, Professor Prater, formulated the following conclusion: “Lack of sleep increases the risk of catching a cold more than other factors. It does not matter how old a person is, what kind of work he has, whether he has bad habits - the sleep factor is more important.”
Eleuthero is a shrub with a height of 2-2.5 meters or more. The shoots are straight, the bark of the trunks is light brown, and the branches are almost black in color. The shoots are covered with thick spikes. The rhizomes of the plant are smooth from the surface, or slightly wrinkled, light brown, with a weak aromatic odor.
Trees or prickly deciduous shrubs of Jujube species can reach a height of 10 meters. Trees of this species have a hemispherical openwork crown, shrubs have pyramidal or widespread crown. Jujube bark is thick, dark gray or anthracite black in color. The young representatives of the species have smooth bark, but over time, it becomes covered with cracks.
Yohimbe (lat. Pausinystalia Yohimbe) is a species of the genus Pausinystalia of the family Rubiaceae, which grows mainly in Africa (one species is in North America). Yohimbe is the only species of the genus that contains the alkalioid yohimbine, which is used as a component of some biologically active additives.
Gymnema is a highly branched, perennial, evergreen plant. This is a large tree vine capable of rooting in nodes. The stems of the plant are bare and branched. The young tips of the plant are pubescent. Gymnema leaves are simple, have elliptical or oval form. The calyx is dioecious.
Cubeb pepper is a climbing shrub up to 6 m tall, with knotty - thickened stems, leathery dark green leaves and flowers collected in a cob-shaped inflorescence. Berries are collected in clusters resembling clusters of black pepper. The difference between black pepper and cubeb pepper is in the longer testis of the last one.
The birthplace of Aerva Lanata is India, but it is also widespread in many other countries, including Africa, Saudi Arabia, Indonesia, Papua New Guinea and Australia. Since 1977, from the seeds imported from Ceylon, Polapola has been grown in the humid subtropics of Georgia as an annual plant.
Cistanche is a genus of plants of Orobanchaceae Vent family, of the order Tubiflorae, growing in semi-deserts and steppes. There are 27 species in the genus. Almost all species have an important chemical composition. The plant parasitizes on many species of Chenopodiaceae family.
Scutellaria is distributed in nature near Lake Baikal, in Eastern Siberia, the Far East, Japan, China, Mongolia and Manchuria. It usually grows on sandy soils, rocky mountain slopes, prefers to grow in the steppes, sometimes can be found along the water shores. Do not confuse Scutellaria Baicalensis with Scutellaria Vulgaris.
Akebia Quinata is a climbing vine, which in height is able to reach up to 3 meters. The annual branches are finely grooved, smooth, shiny, pale purple in color. Leaves are long-leaved, dark green above and much lighter below. Flowers on thin pedicels exude a pleasant aroma and are of beautiful purplish brown color.