Diffusion refers to the net movement of molecules from higher to lower concentration. Diffusion may be a simple diffusion or . A simple diffusion is one in which that occurs unassisted. Facilitated diffusion in contrast is an assisted diffusion in a way that it requires a carrier molecule. For instance, polar molecules diffuse across a cell membrane through carrier molecules in the cell membrane.
Symptoms of Thanatophobia. The mere mention of death or images or thoughts thereof can trigger a crippling anxiety in the patient. Physical Symptoms: Dizziness, dry mouth, sweating, palpitations, nausea, stomach pain, trembling, sensation of choking, chest pain or discomfort, hot or cold flashes, numbness and tingling sensations.
(in-depth info on anxiety attacks starts here) Typically, anxiety symptoms can fit into one of two categories: physical symptoms and emotional symptoms. Physical symptoms of anxiety include physical reactions to the stress that others could notice. Emotional anxiety symptoms would include reactions to stress or a challenging situation that people on the outside usually cannot detect.