Mobin Khan

Neurons are excitable cells because their membranes are in a polarised state. Do you know why the membrane of a neuron is polarised? Different types of ion channels are present on the neural membrane. These ion channels are selectively permeable to different ions. When a neuron is not conducting any impulse, i.e. resting, the axonal membrane is comparatively more permeable to potassium ions (K+) and nearly impermeable to sodium tons (Na+). Similarly. the membrane Is impermeable to negatively charged proteins present in the axoplasm. Consequently, the axoplasm inside the axon contains high concentration of K' and negatively charged proteins and low concentration of Na+. In contrast, the fluid outside the axon contains a low concentration of K+, a high concentration of Na+ and thus form a concentration gradient. These ionic gradients across the resting membrane are maintained by the active transport of ions by the sodium-potassium pump which transports 3 Na+ outwards for 2 K+ int...

Dopamine is the brain’s master chemical.  This single neurotransmitter is responsible for a plethora of mental and physical processes. By learning how to stimulate your own dopamine levels naturally, you can overcome depression, anxiety, apathy, and fear, while boosting feelings of pleasure created by this amazing little neuron. Dopamine is what rewards certain behaviors in us so that we do them again, and why certain drugs are  so addictive .  Cocaine , heroine and other opiates cause a dopamine  “super reward”  which makes their use highly desirable, until you experience the dopamine crash that comes once the illicit drug is absent from the physiology. The opiates bind to the  opiate receptors  in the brain, increasing a dopamine release, but once gone, there is an ever-increasing need for more opiate (or other drug) to induce the same dopamine-high. This is what causes drug addicts to resort to ever increasing, negative behaviors...

The new field of quantum biology applies the craziness of quantum physics to biology's most fundamental processes. There’s a fine line between being hailed as a visionary and being denounced as a crank, as Iraq-born physicist Jim Al-Khalili is only too aware. Seated in his office at the University of Surrey in the U.K. on a sunny day, he recalls a less tranquil time in his career, almost 15 years ago. Back then, he and his Surrey colleague, biologist Johnjoe McFadden, explored a strange mechanism to explain how DNA — the molecule that carries our genetic code — may mutate. Jim Al-Khalili University of Surrey Johnjoe McFadden University of Surrey Their theory caused a stir because it invoked quantum mechanics, the branch of physics that describes the behavior of particles in the subatomic realm. Their idea gave some insight into the origins of genetic mutations, which over the centuries have given rise to the variety of species in the biological kingdo...

Recent research in neuroscience has shown that the brain synapses act like plastic and can be rewire or brain can rewire its neural pathways in remarkably little time(approx 40days). So to change a habit, continue practising namaj, meditate or perform some contemplative practice every day for 40 days and your brain will be rewired. You will then find you have a different perspective or point of view regarding the old behaviour, habits and addiction. Try it. Synaptic pruning  Synaptic pruning is the process of synapse eliminate the occur in a developing brain that is shedding unnecessary connection the selection of the pruned connection probably use it or lose it principal. For neuron that fire together wire together This means synapses that are frequently used have strong connection while the rarely use two synapse are eliminated. Synapses are links between neurons through which they communicate so they are structures of different patterns inside the brain, t...