By Dr Ananya Mandal, MD. Dopamine is a neurotransmitter released by the brain that plays a number of roles in humans and other animals. Some of its notable functions are in: 1  movement. 2  memory. 3  pleasurable reward.
Sycamores (Platanus spp.) are tall, spreading shade trees. These North American natives have few problems or pests, but their older bark flakes off in patches. If your sycamore is shedding bark, it may be a healthy, maturing tree.
Prunus laurocerasus, cherry laurel. The leaves and fruit pips contain cyanolipids that are capable of releasing cyanide and benzaldehyde. The latter has the characteristic almond smell associated with cyanide.1.5% cyanogenic glycosides are present in the leaves. During maceration, i.e. chewing, this becomes glucose, hydrogen cyanide (prussic acid), and benzaldehyde. Cyanide starves the central nervous system of oxygen and, thus, causes death.The Prunus laurocerasus has enough of the poison in the leaves to be used by entymologists as a way of killing insect specimens without physical damage..5% cyanogenic glycosides are present in the leaves. During maceration, i.e. chewing, this becomes glucose, hydrogen cyanide (prussic acid), and benzaldehyde. Cyanide starves the central nervous system of oxygen and, thus, causes death.