THE BRAIN
and
NERVOUS SYSTEM
Understanding the Brain and Nervous System
The brain and nervous system form the central control network of the body, regulating everything from movement and sensation to memory, sleep, and emotional responses. This system is divided into the central nervous system (CNS), which includes the brain and spinal cord, and the peripheral nervous system (PNS), which connects the brain to the rest of the body.
Many everyday experiences — such as headaches, memory lapses, or sleep disturbances — are directly linked to underlying neurological processes. For example, migraines involve complex interactions between blood vessels, neurotransmitters, and trigeminal nerve pathways, while memory depends on synaptic plasticity and hippocampal function.
All of these conditions — including migraines, memory changes, sleep behaviors, and headaches — arise from complex interactions between neurons, neurotransmitters, and brain networks. Understanding these mechanisms helps explain why symptoms occur and how they can be managed.
In this section, you can explore detailed explanations of these processes, including:
MIGRAINES
These articles focus specifically on migraines, explaining the underlying neurovascular mechanisms, trigeminal pain pathways, and physiological triggers that lead to recurrent headache episodes.
Why Do Bright Lights Trigger Migraines? A Medical Physiology Perspective
Bright lights can trigger migraines by activating retinal pathways linked to pain-processing centers in the brain. Learn the neurophysiology behind photophobia, cortical excitability, and why light exposure can initiate migraine attacks in susceptible individuals.
Why Do I Keep Getting Migraines? Understanding What Happens in the Brain
Learn why migraines happen and what goes on in the brain. Explore migraine physiology, triggers, phases, and treatment in this evidence-based guide.
MEMORY and LEARNING
These articles focus on memory and learning, explaining the neural mechanisms involved in encoding, storage, and retrieval of information, as well as the role of synaptic plasticity, the hippocampus, and cognitive processes in memory performance.
Why Do Some People Have Better Memory Than Others? The Physiology of Learning
Explore why some people have better memory than others through the physiology of learning. Understand memory types, neural mechanisms, synaptic plasticity, and factors influencing memory performance.
Why Do We Forget Things?
Discover why we forget things through the physiology of memory and the hippocampus. Learn how the brain encodes, stores, and retrieves memories.
SLEEP PATTERNS AND BEHAVIOURS
These articles focus on sleep patterns and behaviors, explaining the neurophysiology of sleep stages, brain activity during sleep, and the mechanisms underlying behaviors such as sleep talking and other parasomnias.
HEADACHES
These articles focus on headaches, particularly the physiological mechanisms underlying conditions such as morning headaches, including sleep-related factors, vascular changes, oxygen levels, and muscular tension that contribute to head pain.
