• papieros

    Nicotine addiction – a sensitization-homeostasis theory

    Smoking cigarettes causes psychological addiction, because it impacts  the pleasure center of the brain. It also addicts physically as a result of the development of tolerance to nicotine. Some time after smoking, addicts feel withdrawal symptoms, ie. restlessness, irritability, inability to concentrate, etc. – This is the traditional theory of nicotine addiction. Joseph R. DiFranza, working as a family…

  • skoki spadochronowe

    Sensation seeking

    The concept “sensation seeking” was developed in 1979 by Marvin Zuckerman and its definition is “the search of varied, novel, complex and intense feelings and experiences, and readiness to take physical, social, legal, and financial risks for the sake of such experiences”. 

  • adrenalina

    The biology of stress

    The stress response involves two biological systems – the sympathetic nervous system, which is activated first and hypothalamic–pituitary–adrenal axis (HPA axis), which takes effect after a certain time.

  • ptak

    What is flow experience?

    Flow experience is a state of deep concentration, during which we forget about everything, except what we are doing right now. A person during flow experience feels happiness and peace. Flow describes e.g. composers: “You are in a state of such ecstasy that you almost don’t exist. It has happened to me many times. My hands do not…