Influence the physiology of meditation

A study conducted in Australia by Dr Manocha and colleagues showed that long-term meditation compared with the group of subjects who practiced simple relaxation showed a decrease in the temperature of their hands during meditation. This correlates with a subjective feeling of coolness in the hands and on the brain experienced meditator and have been associated with the activation of limbic parasympathetic pathways.

Reference 

 Rai, UC, Seti, S., Singh, SH, 1988. Rai, UC, Seti, S., Singh, SH, 1988. Some effects of Meditate and its role in the prevention of stress disorders. Some of the effects of meditation and its role in the prevention of stress disorders. Journal of International Medical Sciences, 19-23. International Journal of Medical Sciences, 19-23. 

Studies comparing Experienced meditators compared with controls or meditation short term have demonstrated physiological changes during meditation suggestive of an area hypometabolic guard / Standby characterized by decreased activity of sympathetic nerves, it is important to fight and flight mechanism, and increased parasympathetic activity, which is important for relaxation and breaks. Hypometabolic awake state with parasympathetic dominance has been shown to be qualitatively and quantitatively different from the other simple or sleep. Meditation, for example, a technique that raise awareness of thinking every day, possibly through the activation of the parasympathetic-limbic, autonomic activity has been shown to reduce the long-term and short practitioners compared with controls.

A series of studies conducted by Prof. Rai from the Department of Physiology of the University of Delhi have shown that meditation led to a decrease in stress-related physiological parameters rather than show an increase of the parasympathetic nervous system, which is important for rest and relaxation. This includes the reduction of heart, respiratory and pulse rate, systolic blood pressure, and oxygen metabolism, and urinary mandelic acid-vanilly (VMA) and improve skin resistance.

This change is an indicator of physiological activation of the parasympathetic and therefore physiological relaxation that have been associated with stress relief and make may have a role in the prevention of stress-related illnesses, such as respiratory, hypertensive heart disease.

In fact, the same physiological effects achieved by meditation in healthy people, can also be achieved in patients with epilepsy and asthma and hypertension after 4 weeks of meditation training, which in turn associated with a significant reduction of asthma / epilepsy attack.