When we meditate, the changes do not only take place in the brain. They occur throughout the body because the brain has the ability to order the release of chemical molecules.
If under stress, the brain can order the production of cortisol or adrenaline. But the different brain waves associated with meditation bring down these two hormones and, on the contrary, allow the release of molecules of well-being.
Dopamine
Neurohormone associated with the reward-pleasure system, also known as the “pleasure hormone”. When its level drops, depression is observed. It is associated with theta orders.
Serotonin
Similar to dopamine but related to mood. It is known as the “happiness hormone”. Presented in a balanced way, it induces a feeling of well-being. Conversely, depression and aggression are observed. It is associated with sustained alpha waves. In addition, it is necessary for the production of melatonin (sleep).
Noradrenaline
Neurohormone which, when released in a moderate and sustained manner, induces increased attention and a state of euphoria. During a stressful situation, the brain can order a strong release of it, which causes anxiety. It is secreted particularly when our brain emits beta waves. But when it is moderate, it reduces the latter.
Oxytocin
Neuropeptide associated with the bond of love, empathy and sexuality. It is known as the “love hormone”. It is associated with delta waves.
Beta-endorphin
Opioid neuropeptide that binds to opiate receptors. It produces a feeling of euphoria and reduces pain (its analgesic power is 17 times greater than morphine). It is associated with alpha waves and theta.
Anandamide (AEA)
Cannabinoid neurotransmitter associated with bliss and joy. It is known as “Marijuana of the brain”. Its deficiency is associated with generalized anxiety disorder, attention deficit/hyperactivity disorder, sleep disturbances and neurodegenerative diseases. It is secreted particularly when our brain emits high amplitude theta waves and gamma bursts.
Nitric Oxide
(Nitric oxide). This gas produced by our body acts as a messenger. In balanced quantities, it allows better oxygenation of the brain, better blood pressure, reduction of inflammation, strengthening of the immune system, better distribution of nutrients and oxygen, better regulation of insulin. It is associated with alpha and theta waves.
GABA
Inhibitory neurotransmitter, i.e. which lowers the nervous activity of the neurons on which it attaches. It is also called the “valium of the brain”. It promotes relaxation and limits fear or anxiety that manifests as neuronal over-excitation.
Melatonin
Hormone similar in structure to serotonin, known as the “sleep hormone”. In sufficient quantity, it participates in a top of better quality and in the good functioning of the immune system. It also has antioxidant activity on free radicals in cellular aging processes. Conversely, low melatonin levels are associated with migraines, bipolar disorder and other health problems.
Vasopressin (ADH)
It is a hormone known as an anti-diuretic (reabsorption of water in the kidneys) whose chemical formula is close to oxytocin. It would arouse a feeling of well-being because it is present in particular during the phase of seduction, excitement preceding sexual intercourse and during orgasm. It would also sharpen attention and concentration.
Conclusion
When you achieve deep meditation, your brain can produce all of these substances at once. Thus, accounts of mystical experiences and altered consciousness, feelings of ecstasy, bliss and euphoria do have a measurable physiological origin.
These feel-good molecules not only work during meditation but also condition the rest of your day, as researchers using fMRIs have claimed. So you don’t need to use drugs to achieve. These states, your body knows how to produce them without the side effects that go with them!